Cov khoom tseem ceeb ntawm yog polyvinyl chloride, uas yog tsim los ntawm cov txheej txheem nias xws li xim txuam, granulation, extrusion thiab luam ntawv.Lub hauv paus khoom ntawm PVC ntug banding yog tsim los ntawm PVC cob, calcium carbonate hmoov thiab ntau yam khoom pab (xws li stabilizer, DO ...
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