Apr 18, 2018
Attending Semen Tonasa Quality Convention 2018. Innovation preserve environment and support green proper. #sementonasa #semenindonesiagroup #konvensimutu #qualityconvention (at PT. semen tonasa)
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Attending Semen Tonasa Quality Convention 2018. Innovation preserve environment and support green proper. #sementonasa #semenindonesiagroup #konvensimutu #qualityconvention (at PT. semen tonasa)