Polypropylene (PP) pipes - PP-H, PP-B, PP-R, PP-RCT - General quality requirements and testing
聚丙烯（PP）管.PP-H PP-B PP-R PP-RCT.一般质量要求和试验

2008-09-01

聚丙烯（PP-R、PP-B、PP-H）管材、管件材质鉴别方法
Identification method for material of polypropylene (PP-R, PP-B, PP-H ) pipes or fittings

2015-12-31