PP 广州宣布租购同权 两钓友被困江心

Manufacture Polypropylene Pipes And Pvc Pipes By: Yunik Chandna | Mar 17th 2008 – Polypropylene Pipes (PP) pipes and PPR pipes are manufactured by extrusion in the same way as PE pipes. Polyvinyl Chloride Pipes (PVC ) and PPR pipes can be manufactured with or without plasticizers. Examples of the former are garden hose, floor tiling and household articles. Tags: 相关的主题文章: