YUHE polypropylene hot-cold water pipe Feature:High efficiency,high quality,best service Certifications: ISO9001 ISO14001 Product Name: PP-R Hot-Water PipesMaterial: PP Place of Origin: Zhejiang ChinaCertification: ISO9001:2000 ISO14001:20041.Application :(1) Distribution for hot water system(2)Pipes to connect kinds of low-temperature heating system(3)Pipes for heating setting in solar energy ...