Dukora cyane cyane plaque ya PVC, imbaho zurukuta, amakadiri yumuryango WPC, Windows, imashini yimashini. Nkuko twese tubizi, PVC (polyvinyl chloride) ni plastiki itumva ubushyuhe, kandi itara ryayo naryo rirakennye. Mubikorwa byubushyuhe numucyo, biroroshye de-HCl reactio ...
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