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PVC tawv raw khoom-PVC cob
PVC tawv (polyvinyl chloride) yog thawj hom faux tawv uas yog tsim los ntawm kev hloov cov pab pawg hydrogen nrog cov tshuaj chloride hauv pawg vinyl.Qhov tshwm sim ntawm qhov hloov pauv no yog tom qab sib xyaw nrog lwm cov tshuaj los tsim cov ntaub yas ruaj khov uas tseem yooj yim rau mai ...Nyeem ntxiv
