... as closed-cell structure, good aging resistance performance, low heating conductivity, moisture resistance factor, good fireproofing, easy installation.It ... us, the better it is.We also provide PE, PP, PPR, PB, PVC pipes, sealing strips and corrugated pipe (sylphon bellows) ... for hot water plumbing and heating, dual temperature piping and solar systems. It protects pipes against corrosion and acts as ...