1. Chaw tsim tshuaj paus lossis tus muab kev daws teeb meem, tus tswv thiab siv thoob ntiaj teb tus qauv ASTM BS EN40 hauv kev tsim thiab tsim khoom.
2. Precise vuam, tsis muaj to vuam, tsis muaj ntug tom, du nto yam tsis muaj impurities.
3. Hmoov txheej txheej txheem, ntshiab polyester yas hmoov txheej stability, muaj zog adhesion, UV kuj. Zaj duab xis thickness ntau tshaj 10um, muaj zog adhesion.











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