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塑料型材近年在我国发展迅速,目前我国门窗用聚氯乙烯型材的使用已经相当普遍,生产能力已近150万t。但是我国在门窗型材以外的塑料型材
Plastic profiles in China in recent years the rapid development of China’s PVC windows and doors used in the current profile has been quite common, production capacity has been nearly 1.5 million t. However, China’s plastic profiles outside the window profiles