Sebopeho sa thepa e tala le thepa ea polasetiki ea lehong ea PVC.PVC sefate phofo le lehong fiber le inorganic filling (calcium carbonate), lubricant, stabilizer, foaming agent, foaming regulator, toner le tse ling tse amanang le (plasticizer, toughening agent, coupling agent), joalo-joalo 1, resin domest...
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