Ntawm no yog ntau yam ntawm cov yas dej fwj uas feem ntau siv hauv peb lub neej, xws li cov menyuam yaus lub khob dej txias, lub raj mis mus ncig ua si, khob ncaws pob, khob dej sab nraum zoov, thiab cov khob dej nqa tau.Cov khoom siv ntawm cov khob yas no feem ntau yog PE, PP, PS, PVC, ABS, thiab PA66.Txawm hais tias cov txheej txheem ...
Nyeem ntxiv