... Certification:CE,ISO,8760PPR cold &hot water pipe is a new type chamical construction material.Features1.Sanitation,non-chemical effect,non ... flexility,anti-cold and anti-expanding.6.Good heat resistance:low heat conduction,anti-heat water,high voltage proof.Under the ... its thermoplastic material ,glossy inwall & outwall ,smaller flow resistance and low noise.8.It is the most durable tube with life-span ...