Tshwj xeeb engineering plastics xa mus rau engineering plastics nrog cov khoom siv dav dav thiab kev pabcuam ntev kub siab tshaj 150 ℃. Feem ntau ob qho tib si kub tsis kam, hluav taws xob tsis kam, hydrolysis tsis kam, huab cua tsis kam, corrosion kuj, ntuj nplaim retardant, l ...
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