Kev xaiv cov ntaub ntawv foob: Cov khoom siv foob feem ntau ntawm peb lub tuam txhab yog Polyurethane, Nitrile roj hmab, Fluororubber, PTFE, thiab lwm yam, thiab ntau yam ntaub ntawv muaj cov yam ntxwv sib txawv, raws li hauv qab no: (1) Polyurethane cov khoom muaj hnav zoo r ...
Nyeem ntxiv