Item: ppr place of origin: Shijiazhuang,China Brand ... PP injection become fittingsAdvantages:Pp-r with a general plastic pipe light weight, corrosion resistance, not fouling, ... types of benign variety of business models, whithin plastic , metal, raw chemical materials are the most representative ... focus on the establishment of Beijing Oyuan Shengfa Plastic Co.,Ltd. development of foreign users, after ...