... grey 3.Size :16mm-160mm 4.Certification:CE,ISO,8760PPR cold &hot water pipe is a new type chamical construction material ... (50kg/cm2),It also features shockproof.5.High flexility,anti-cold and anti-expanding.6.Good heat resistance:low heat conduction ... most durable tube with life-span of 50years.Applications:1) Cold, heat drinking water ductwork (houses, hospitals, schools and foodstuff); swimming ...