Polyvinylchloride (PVC) is the one of the five biggest general plastic, that has very enormous output and consumption.
聚氯乙烯(PVC)是世界五大通用塑料之一，产量用量极大，应用范围极广。
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White plastic PVC plumbing has yellowed and thinned on the side exposed to the light, where its chloride is weathering to hydrochloric acid, dissolving itself and its polyvinyl partners.
Being rough and uneven in surface and thickness, plastic cooling fillers for cooling tower which are made from polyvinylchloride (PVC) doesn't examined with standard method.