WINSINN Leveling Spring Component – M3 Screw Knob – For 3D Printer Hot Bed / Platform (Pack of 4set) ►This kit is For 3D Printer Hot Bed / Platform ►Material: Screw - 304 Stainless Steel Spring - 304 Stainless Steel Knob - High quality Coppor…

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WINSINN Leveling Spring Component – M3 Screw Knob – For 3D Printer Hot Bed / Platform (Pack of 4set) ►This kit is For 3D Printer Hot Bed / Platform ►Material: Screw - 304 Stainless Steel Spring - 304 Stainless Steel Knob - High quality Coppor…