Chigawo chachikulu cha polyvinyl chloride, chomwe chimapangidwa ndi makina osindikizira monga kufananitsa mitundu, granulation, extrusion ndi kusindikiza.Zida zoyambira za PVC m'mphepete mwa banding zimapangidwa ndi utomoni wa PVC, ufa wa calcium carbonate ndi zida zosiyanasiyana zothandizira (monga stabilizer, DO ...
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