#extradirty
todays bird
Xuebing Du
Sade Olutola
TVSTRANGERTHINGS
Cosmic Funnies
Andulka
Sweet Seals For You, Always
occasionally subtle
dirt enthusiast
roma★
almost home
let's talk about Bridgerton tea, my ask is open
he wasn't even looking at me and he found me
Lint Roller? I Barely Know Her
trying on a metaphor
⁂
Today's Document
DEAR READER
Misplaced Lens Cap
seen from Germany
seen from United States
seen from Poland
seen from Russia
seen from Germany
seen from United States
seen from Netherlands
seen from United States
seen from United States
seen from United States
seen from United States
seen from United Kingdom
seen from United States
seen from Germany
seen from Brazil
seen from United States
seen from Poland
seen from India
seen from Germany
seen from Germany
@durkeesox
Even and Precise Air Dispersion System
Durkee fabric air dispersion system discharge air through fabric permeation and calculated orifices to create tri-dimensional air dispersion effect with even air and comfortable air distribution, precise and high efficiency air throw.
Durkee fabric air dispersion system discharge air through fabric permeation and calculated orifices to create tri-dimensional air dispersion
The Optimization Design and Local Resistance Loss of Fabric Air Duct
With the in-depth study of the air supply principle of the fabric air duct system, the design method of the fabric air duct becomes maturer and maturer, including the study and calculation of the on-way resistance inside the fabric air duct.
There are also pressure losses due to the frictional resistance and local resistance along the length direction of the fabric air duct system. Because the pressure loss is proportional to the wind speed, when the wind speed along the length direction becomes smaller and smaller, the resistance loss also decreases continuously. At the same time, there are also local resistance losses at the standard parts of the air duct and at the air outlets.
The main part is the straight duct in the fabric air duct system, and there are a few tee-junctions, elbows, and reducings in the system. Generally, the on-way resistance loss is the main resistance loss form. The frictional on-way resistance of the airflow in the duct with the unchanged air cross-section shape is calculated as follows:
The frictional resistance coefficient; the average velocity of the air in the duct, m/s; the air density, kg/m3; the duct length, m; the diameter (inside diameter) of the round air duct, m. The frictional resistance coefficient is a variable value, which is related to the flow condition of air in the air duct and the roughness of the duct wall. The frictional resistance coefficient obtained is no more than 0.024 (about 0.019 for the iron air duct) according to the comprehensive study on the fiber material and the fabric air duct system. The average wind speed in the air duct is 1/2 of the speed at the inlet of the air duct because there are air supply holes in the extension direction of the fabric air duct. It can be seen that the on-way resistance loss of fiber air ducts is much smaller than that of traditional iron air ducts.
To reduce the local resistance loss of the fabric air duct system, we usually carry out certain optimization designs:
1. Multiple factors should be taken into consideration when choosing the duct diameter, and try to reduce the wind speed in the duct as much as possible.
2. Optimize the design of special-shaped parts to avoid too rapid a change of flow direction and too fast a change of section.
It can be seen that the on-way resistance loss of the fabric air duct system, especially the straight duct system, is very small and generally, it will not exceed the static pressure regain value, so the resistance loss can be basically ignored in rough calculation!
With the in-depth study of the air supply principle of the fabric air duct system, the design method of fabric air duct becomes maturer and
Contact Us
Thank You For Your Interest In Durkee's HVAC Air Duct Solution.
Do you have questions about any of our fabric air duct systems? Need a quote or consultation for your project? Let us know, and we'll follow up with you right away.
Your Name *
Your Email *
Your Phone *
Type Service *
Your Message *
SEND Message
Add:NO.8, West Renmin Rd., Gedian Development Zone, Hubei ,China
Email:[email protected]
Tel:+86-27-59237477
Web: Durkeeglobal.com
Sales Center
Asia-Pacific Regional Offices
Asia-Pacific Regional Offices
Durkee Asia Pacific PTE Ltd
Add: 6 RAFFLES QUAY #14-02, 048580, Singapore
Email: [email protected],
US Regional Offices
US Regional Offices
Durkee America, INC.
Add: PO BOX 1592 Issaquah WA 98027
Tel: +1 (206) 639-2889
Email: [email protected], [email protected]
Euroasia Regional Offices
Euroasia Regional Offices
Durkee Euroasia Trading DWC-LLC
Add: DWC Business Center, PO Box 390667, Dubai, U.A.E.
Email: [email protected]
Please feel free to contact Durkee to discuss about your ventilation project with our experts. We have set up branch offices respectively in
The Comparison Between Fabric Air Duct and Galvanized Iron Air Duct (Part II)
(4) The influence on floor height
An insulation layer needs to be wrapped outside the galvanized iron air duct on site, and the insulation layer often requires replacement when carrying out maintenance, so in addition to the height of the duct itself, a certain space for installation and maintenance should be reserved.
The fabric air duct itself has the thermal insulation effect, so it can be installed close to the roof without reserving the space for installation. The measured results show that the use of fabric air duct can save about 5 -10cm in height compared with the use of galvanized iron air duct.
(5) The service life of galvanized iron duct
It is easy for galvanized iron sheet to rust in a humid environment, and the glass fiber, another kind of insulation material commonly used in galvanized iron air duct, will become brittle after moisture absorption, therefore, the service life of galvanized iron duct is about 5 to 10 years. While the textile air duct has a service life of up to 20 years. From this point of view, the service life of fabric air duct is much longer than that of galvanized iron air duct.
(6) The noise elimination performance of galvanized iron duct
Galvanized iron air duct is a kind of rigid duct without noise elimination effect, and it will even send the noise produced by the equipment to the workplace, so other noise elimination accessories such as sound proof housings and hend mufflers are needed. In addition, when suddenly encountering cold or hot wind, the galvanized iron air duct will produce stress deformation due to thermal expansion and contraction, so as to bring the annoying croaking. On the contrary, the fabric air duct is soft in texture and has good noise elimination performance. It is a very good tubular muffler, so there is no need to conduct noise elimination treatment, which can reduce a lot of troubles.
(7) Hygiene and health of galvanized iron duct
Galvanized iron air duct is easy to rust and produce the cold bridge phenomenon, so the dew formation is prone to occur. Therefore, bacteria such as legionella are easy to breed in galvanized iron air duct, resulting in secondary pollution to the air supply. In addition, the glass fiber, an insulation material commonly used in galvanized iron air duct will do harm to human health to some extent. Instead, the fabric air duct is not easy to produce condensation water, which can avoid the generation and spread of bacteria. Therefore, from the perspective of hygiene and health, fabric air duct is far better than galvanized iron air duct.
As is analyzed above, in practical application conditions, the performance and use of fabric air duct are much better than those of galvanized iron air duct in all aspects. Therefore, the combination of fabric air ducts can break through the limitations and inconvenience of traditional air ducts in the application of central air-conditioning air duct, which is worth being applied and promoted in various industries and fields.
(4) The influence on floor heightAn insulation layer needs to be wrapped outside the galvanized iron air duct on site, and the insulation la
How to Design Nanosox System
https://en.durkeesox.com/fabric-duct-guide/how-to-design-nanosox-system.html
Durkeesox is an integrated A/C Duct integrated solution provider with a complete set of product portfolio. Insusox system is a pre-insulated air duct system serving as an air transmission duct above the ceiling.
System Selection
Air transmission duct
Air dispersion duct
Air transmission duct (Composite with insulation material)
I series Insusox pre-insulated air duct system Air dispersion duct (Permeable or Non-permeable)
N series Durkeesox fabric air dispersion system
How to Design Nanosox System
There is no essential difference between Nanosox fabric duct systems and traditional air duct system design, especially the spiral duct. The designer could make a proposal by Design manual or Durkeesox proprietary I-sox software. The design solution can be also provided by Durkeesox engineering team.
How to Design Insusox System
With BIM ductwork concept, all duct segments and components of Insusox systems are designed, produced and installed in a modularized and standardized way.
After reading this, you can also know how to design hvac ductwork.
HVAC System in Pharmaceutical Industry
https://en.durkeesox.com/hvac-system-in-pharmaceutical-industry.html
According to industry statistics, there are 16,500 pharmaceutical wholesale companies in China, nearly 140,000 retail companies, 120,000 retail pharmacies, and more than 6,300 pharmaceutical manufacturers. More than 95% of these companies are small and medium-sized pharmaceutical companies. Although small and medium-sized pharmaceutical companies cannot compare with large companies in terms of investment and cannot become leaders in supply chain integration, as part of the current pharmaceutical supply system, any supply Chain optimization projects are inseparable from this link.
In response to industry issues, implement active pharmaceutical logistics development policies, scientifically plan pharmaceutical logistics infrastructure, speed up the integration of logistics resources, and realize the informatization of the pharmaceutical circulation industry. In particular, the management measures of HVAC system in pharmaceutical industry will accelerate the standardized development of the industry.
1. Current status of HVAC in pharmaceutical industry
The implementation of the new version of GSP has put a lot of pressure on many companies engaged in medicine. The medicine library has strict temperature control. Temperature monitoring probes are arranged throughout the medicine library. Once the temperature exceeds the standard, an alarm will be sent to the control and supervision center. If the standard is met, the business qualification will be disqualified.
Therefore, the warehouses of top pharmaceutical companies such as Sinopharm, Shanghai Pharmaceuticals, China Resources Beiyao, and Jointown all use fiber fabric air ducts to supply air. Most small and medium-sized enterprises only consider the jet machine input cost and do not consider the long-term development benefits will choose the jet machine program.
2. Comparison of fabric air duct system and jet air supply
(1) The air supply of the fabric air duct system is accurate and uniform, there is no cold air stagnation area, no dead corner air supply, and the temperature gradient of the entire warehouse can not exceed 0.5 degrees Celsius; the jet machine line type air supply can not reach the cooling capacity in many places. Frequent alarms will occur, and serious business qualifications will be canceled.
(2) All modern medical warehouses use automatic palletizers, with only a small number of equipment operators, and the fiber fabric air duct is a flexible fabric duct material. It does not produce noise during the air supply process and absorbs the noise from the equipment, making it easier to work Workers have a quiet working environment; because the jet machine is installed indoors, there will be a loud whistle or fan vibration when air is supplied, and employees complain a lot.
The survival of an enterprise requires a long-term plan. It must be based on long-term interests rather than tightly considering the current situation and interests. Enterprises that cannot do this must be difficult to develop and grow.
Sport Facility Ventilation
https://en.durkeesox.com/application/sport-facility/
DurkeeSox system is perfectly embedded to Sport facilities such as athletic contest stadium, big ball game gyms, Small ball game gyms, Indoor swimming pool & Fitness gym with famous users like, Port court Gym (US) and De Vogel pool (Netherland).
Advantages
The Pleasant air dispersion effect offer great user pleasing experience. With unique design and material, the system realizes condensation free with convenient installation methods. Meanwhile, the cost performance still remains highly competitive in the market.
CASE SHOW
+
Yingdong Stadium Ventilation
The stadium was designated as the Asia Games'basketball competition stadium, the hardware and software facilities of the stadium run thorough transformation to comply with the high grade requireme...
+
TAOGEN Sport Center Ventilation-Sport in Nature
Project OverviewLocated in Beijing Zhongguancun Science and Technology Park Daxing Biomedical Base, TAOGEN SPORT CENTER covers an area of about 14,000 square meters and have 6 basketball gyms with A g...
+
Chase Center Project-Golden State Warriors Home Venue Air Duct System Ventilation
Chase Center is a multi-purpose arena under construction in the Mission Bay neighborhood of San Francisco. It will become the new home venue for the Golden State Warriors of the National Basketball As...
+
Fabric Air Dispersion System at PyeongChang 2018 Winter Olympic Ice Arena
Inaugurated on July 17th,2014, Gangneung Ice Arena was completed and came into service in2016. Building with reinforced concrete structure and steel roof truss, the grand arena is 40m high with 2 floo...
+
Fabric Duct for Water Club Ventilation
After a 9 months reconstruction, the new Water Cube reopened to the public on Aug. 8th, two years from the Beijing Olympic Opening Ceremony, and the operation area increased from 490,000m2 to 770,000m...
+
Fitness First Lotte Ventilation
Shopping Mall & Supermarket Ventilation
https://en.durkeesox.com/application/shopping-mall-supermarket/
Durkeesox has applied at spaces with open ceiling area in shopping mall and supper market worldwide. Famous users include Carrefour, Metro, Tesco, Auchan, Lotus, Oman Golden Dragon Mart and etc.
Advantages
Elegant and visual pleasing, even and comfortable air dispersion, light weight and quick installation, high cost efficiency.
Fabric Duct for Oman Golden Dragon Mart
Oman Golden Dragon Mart, another China commodity markets which invested by Chinese company after the well-known Dubai Dragon Mall in middle east, supply auto parts & accessories, Electrical & ...
Fabric Duct at Carrefour Malaysia
Features of designSymmetrical laid out 4 ducts with 1118 mm in diameter and 38 m in length in the whole shopping area and design different air velocities according to different functional areas. For e...
Fabric Duct at Indonesia Carrefour Lebak Bulus
Fabric Duct for Othaim Markets Kharj Store Ventilation
Commercial Ductwork for Carrefour Dubai
Thermal Insulation Performance
https://en.durkeesox.com/textile-ventilation/thermal-insulation-performance.html
The thermal insulation layer is made of high quality thermal insulation material, Integrated composite with infinite moisture resistance factor presents resulting in lower heating conductivity coefficient. thermal insulation material better thermal insulation property.
What is the Best Thickness of the Material of the Air Duct?
https://en.durkeesox.com/what-is-the-best-thickness-of-the-material-of-the-air-duct.html
In recent years, the air distribution system of the air duct (also known as fiber fabric air duct has become more and more popular with users. The application range of the air duct has been spread to various industries from the earliest application in the food industry. The reason why the air duct can replace the traditional metal duct in many fields is inseparable from its own advantages.
One of the advantages of air ducts: lightweight
Since the air ducts and the metal air ducts are made of completely different materials, the advantage of self-weight is obvious. The use of the air duct system can greatly save the engineering installation cost, transportation cost, and safety performance is also brilliant. However, many users have a misunderstanding about the thickness of the air duct material. They always think that the thicker the material is, the better and stronger it will be. In fact, it is not true. The main function of the air supply duct is to transport the hot and cold air in the duct, and the transport power of the wind is the pressure of the fan. The air pressure of the general air conditioning unit will not exceed 2000pa. As the experiment shows, after being tested for pressure, it has been proved that the air duct made of the fabric of 100g / m2 quality can withstand more than 2000Pa pressure.
So how much the thickness of the fabric duct material would be optimal? Under the condition of satisfying the pressure resistance and tear strength of the air duct, the lighter the better. Generally, 140g / m2-220g / m2 is suitable, especially in food factories, clean workshops, and other environments that require frequent cleaning, the lighter, and thinner, the more convenient to use.
It has been proved by practice that the thicker the material of the air distribution pipe is, the lower the difficulty of design is, which can conceal the phenomenon of the vibration of the air distribution pipe caused by insufficient design experience in some fabric duct manufacturers. However, there is no real benefit to the user, and the real advantage of the air duct is lost, which will bring great difficulties to the later maintenance.
The Design Analysis of HVAC System in Pharmaceutical Industry
https://en.durkeesox.com/the-design-analysis-of-hvac-system-in-pharmaceutical-industry.html
The HVAC system in the pharmaceutical industry is a key system in the pharmaceutical industry, and it plays an important role in providing safe and effective products to patients. Only when the pharmaceutical production environment is properly designed, constructed, debugged, operated and maintained, can the quality of the products be ensured, the reliability of the products can be improved, and the initial investment and later operating costs of the factory can be reduced.
1. The importance of HVAC system in pharmaceutical industry
The HVAC system in pharmaceutical industry is an important part of the pharmaceutical production quality control system. The HVAC system in the pharmaceutical industry must control and monitor the air temperature, humidity, suspended particles, and microorganisms in the pharmaceutical production environment to ensure environmental parameters. Meet the requirements of drug quality. The system can avoid air pollution and cross-contamination, and at the same time provide a comfortable environment for operators. In addition, the HVAC system in the pharmaceutical industry can also reduce and prevent the adverse effects of drugs on the human body during the production process, and protect the surrounding environment. For the pharmaceutical industry, a clean and safe space environment is a key factor that must be considered in the design of the HVAC system in the pharmaceutical industry.
2. Considerations in the design of HVAC system in pharmaceutical industry
When designing the HVAC system in the pharmaceutical industry, strictly follow the basic requirements of the pharmaceutical production quality management specifications and corresponding regulations on the environment, and reasonably divide the HVAC system in the pharmaceutical industry according to the relevant specifications and regulations. In design, the adverse effects of the pharmaceutical production process and production equipment on air quality should also be fully considered. In the production process of medicines, pollutants such as dust, harmful gases, and odors are generated, and the influence of pollutants needs to be effectively eliminated. The design of HVAC systems in the pharmaceutical industry must also fully consider the adverse effects of air quality on processes, equipment, and operations.
URR Cloth Ductwork
http://en.durkeesox.com/textile-ventilation/urr-cloth-ductwork/
URR™ (UNIFORM AIR VELOCITY, REDUCER, RETENTION)-N SERIES
URR cloth duct work perfectly integrates uniform air velocity controlling technology with the internal retention ring system. URR cloth air duct system remains round when deflated, absorbing all advantages of both products, It presents more stable inner air velocity, more balanced inner pressure, better visual pleasing effect, easier installation, and higher cost-efficiency.
Advantage
More Stable Inner Air Velocity
Inner Air Velocity on Lengthwise Section
Under the same air supply condition, the internal air velocity curve of ordinary equant round duct is sharply descendant along with lengthwise direction, the air velocity tends to zero at the end cap; UR system can generally ensure stable internal air velocity.
Air Dispersion Direction Diagram of Ordinary Equant Round Duct
Due to vector superposition effect, there is wide difference in internal air velocity from inlet to end cap of ordinary equant round duct.
Air Dispersion Direction Diagram of UR System
Uniform air velocity inside UR system results in same air dispersion direction along the duct.
More Balanced Inner Pressure
Static Pressure Curve of Ordinary Equant Round Duct
Generally speaking, the air velocity is rapidly decreasing inside ordinary equant round duct. Since the static pressure regain leads to the increasing of dynamic pressure whereas less on-way resistance, the overall static pressure from inlet to end cap has a certain increase. PAD must be installed to balance static pressure.
Static Pressure Curve of UR System
Since UR system is cone-shaped from inlet to end cap, its on-way resistance is larger than that of ordinary equant round duct. Meanwhile, the internal air velocity is relatively uniform and the static pressure regain is lower. The test result turns out that UR system could basically achieve balanced inner static pressure as long as it is not exceptionally long.
Effectively Slow Down Temperature
Ordinary Equant Round Fabric Duct System
If ordinary equant duct is running with excessively high surrounding temperature or over-length, the inner air temperature lengthwise has a certain rise.The degree of temperature rise is relevant to duct length and temperature difference between insideand outside duct surface.
UR Air Dispersion System
The relatively high axial air velocity of UR system reduces the heating exchange time between the inner air and duct surface, which slows down and reduces the temperature rising. Meanwhile, as the decreasing of surface area along the rear duct results in smaller heating exchange contact area, that is conducive to further slow down and reduce temperature rising. The test result turns out that the temperature rising control efficiency of UR system has been improved for 70% compared with Ordinary equant round fabric duct.
Achieve More Uniform Airflow Distribution
UR System With Multi-Branches
Since the air velocity in main duct of UR system is completely stable and balanced while the included angle between duct surface and branch duct is slightly less than 90°, that is conducive to lead uniform air distribution to each branch.
Ordinary Equant round fabric duct with multi-branches
Different air velocity in main duct of Ordinary equant round fabric duct leads to different airflow supply in each branch, which causes the nearer the branch is to endcap, the more airflow the branch is to receive. ACD is required to balance airflow in each branch.
Durkeesox is a reliable fabric duct manufacturers, we provide durkee insulation, fabric air diffuser, air dispersion system and etc. Want to know more? Contact us now.
UF-System Underfloor Air Distribution System
http://en.durkeesox.com/textile-ventilation/uf-system-underfloor-air-distribution-system/
UFSOX-N SERIES/I SERIES
UF™ underfloor air conditioning is a specialty fabric underfloor air vent system that is installed underneath raised access floor space which provides an air highway to guard against thermal decay and achieve optimum air distribution.
Advantages of Underfloor Ducting System
Quick Installation
The installation time of UF™ system is only 1/10 of that of traditional metal air duct.
Even & Comfortable
Linear vents are designed along longitude direction of DurkeeSox fabric air duct right below the floor vents to obtain more even and balanced air dispersion at target area.
Even & Comfortable
Linear vents are designed along longitude direction of DurkeeSox fabric air duct right below the floor vents to obtain more even and balanced air dispersion at target area.
Flexible Layout
Made of flexible fabric material, DurkeeSox layout design is very flexible on the basis of floor space. Standardized section (active section and inactive section) can be freely configured in accordance with client's demand.
Green & Energy Conservation
As san air delivery highway, DurkeeSox fabric air duct delivers cooling air and heating air to perimeter zone under the raise access floor of target area, reversing the energy waste at unnecessary area on its way to target area.
Easy Maintenance
DurkeeSox® fabric air duct can be easily dismantled and taken out by removing necessary floor tiles. It is much more difficult to remove metal duct from underneath the floor tiles.
There have many system include underfloor ducting system, underfloor air conditioning system, underfloor duct system, underfloor hvac system, underfloor air conditioning systems, air distribution system in hvac and so on. We also have underfloor ventilation ducting and underfloor air vent you can choose.
Durkeesox is a reliable duct sock suppliers, we provide fabric air dispersion system, fabric air duct system, textile duct system and etc. Want to know more? Contact us now.
Returnsox™ Fabric Exhaust Air Duct
http://en.durkeesox.com/textile-ventilation/returnsox-fabirc-exaust-air-duct/
RETURNSOX™-N SERIES/I SERIES
Made of high-strength material, ReturnSox™ return air duct system utilizes patented internal support frame to maintain the flexible air duct in rectangle shape and return air under negative pressure. Returnsox™ is a replacement of traditional return air duct with cable suspension system to install on site. There also have cloth ductwork you can choose. We also give you some suggestion about what is a return air duct.
Durkeesox is a reliable duct sock suppliers, we provide fabric air dispersion system, fabric air duct system, textile duct system and etc. Want to know more? Contact us now.
Diffusox™ Textile Air Duct Diffuser
http://en.durkeesox.com/textile-ventilation/diffusox-textile-air-duct-diffuser/
DIFFUSOX™
DiffuSox™ air hvac duct diffuser is made of metal frame and highly permeable fabric, the air dispersion surface attach to the metal frame via Velcro, connecting to metal inlet via square to round fitting and detachable inlet.
Durkeesox is a reliable duct sock suppliers, we provide fabric air dispersion system, fabric air duct system, textile duct system and etc. Want to know more? Contact us now.
Installation
http://en.durkeesox.com/fabric-duct-guide/installation.html
Durkeesox integrate and streamline its production procedures in the factory,leaving the installation work that on-site worker can easily manage well.That contributes to easier installation,lower cost and shorter construction time compared with that of traditional air duct. If you want to know how to install ventilation duct, we will give you the duct installation guide.
Installation
Type of fabric duct installation
The hvac ventilation duct installation of Durkeesox air duct system is much easier than any conventional one, which consists of 2 styles:
1. Cable suspension system.
2. Aluminum track suspension system
Cable Suspension System >>>
Cable suspension system is more popular due to convenient installation and low cost, which can be classified as follows:
By material: galvanized cable and stainless cable.
By weight-bearing capacity: ordinary cable and heavy-duty cable.
By rows of cables: single row, double rows, and multiple rows.
By suspension location: 12:00(single row), 2:00 &10:00 or 3:00 & 9:00 (double rows).
Aluminum Track Suspension System
The materials required to install DurkeeSox system includes: textile duct, special fittings, components, and accessories, which are supplied by the manufacturer (shipped with the consignment, including installation manual and assembly drawing, etc.). Other installation accessories required on-site such as brackets, fastening bolts, and others shall be purchased by the contractor
Durkeesox is a reliable duct factory, we provide durkee insulation, fabric air diffuser, air dispersion system and etc. Want to know more? Contact us now.
How to Select Nanosox System
http://en.durkeesox.com/fabric-duct-guide/how-to-select-nanosox-system.html
Nanosox air dispersion system is a flexible terminal air dispersion system for the HVAC/R industry. The fabric air ventilation system is made of special high-tech fabric, replacing traditional air ducts, air dampers, diffusers, and thermal insulation material.
Material Selection
According to the material, Durkeesox fabric air dispersion system consists of three series: Nanosox-N（NN Series）, Nanosox-L(NL series) and Nanosox-F(NF series).
We also have half round duct for our customer.
Durkeesox is a reliable fabric duct manufacturers, we provide durkee insulation, fabric air diffuser, air dispersion system and etc. Want to know more? Contact us now.