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Unsaturated Polyester Resin
Unsaturated polyester resin, yomwe imadziwikanso ndi dzina lachingerezi UPR, ndi polima wamadzimadzi osindikizidwa mosavuta omwe, atachiritsidwa (wolumikizidwa ndi styrene, pogwiritsa ntchito zinthu zina, organic peroxides, otchedwa hardeners), amasunga mawonekedwe olimba nkhungu.The...Werengani zambiri
