1.Upvc Yas Rau Vaj Huam Sib Luag
Upvc yog ib qho ntawm lub ntiaj teb qub tshaj plaws ua cov polymers, polyvinyl chloride, lossis PVC, tau hloov zuj zus txij li xyoo 1940 los ua kev siv thoob ntiaj teb, raug nqi, yoog raws, muaj kev nyab xeeb thiab ib puag ncig cov khoom. PVC cov khoom tshwj xeeb ua nws cov khoom siv rau kev xaiv rau ntau daim ntawv thov, nrog rau kev tsim kho, tsheb thauj mus los, khoom siv hluav taws xob thiab kev noj qab haus huv.Upvc Yas Qhov Rooj Vaj Huam Sib Luag yog cov khoom siv ntau tshaj plaws nyob rau hauv lub qhov rai thau khoom thiab tau txais hauv kev lag luam kev lag luam vim nws ua haujlwm tau zoo. Txawm hais tias ntau tus tseem ntseeg tias nws tsis muaj peev txheej, kev nrhav tshiab uas tau txhim kho cov kev ua haujlwm hauv vinyl thav ntawv nyuaj rau qhov kev nkag siab no.
Cov khoom siv kho tsev.
Rooj tog, chaw ua haujlwm
Duab khoom:
