Cov Lus Piav Qhia Txog Cov Yam Ntxwv, Cov Txheej Txheem Ua Khoom, thiab Cov Kev Siv Cov Khoom Siv PE thiab PP
1. Txheej Txheem Cej Luam Cov Khoom Siv PE, PP, PVC, PS, PC, PF, EP, ABS, PA, PMMA, thiab lwm yam. Lawv yog cov khoom siv yas, tseem hu ua cov khoom siv polymer. Lawv yog ib hom khoom siv hluavtaws uas muaj cov yas ua los ntawm cov tshuaj sib xyaw ua ke los ntawm ntau yam...
saib cov ntsiab lus