PPR pipe fitting:male thread union,with quality PPR raw material,sizes from 20 to 63mm*1/2 to 2inch,approved by ... ISO,OHSAS Features:Material:polypropyleneSizes:20 to 63mm*1/2 to 2inchConnection:socket fusion jointStandard:GB/T18742.2--2002Certification ... sustained working temperature is up to 70 degrees,the maximum transient temperature is up to 95 degreesHeat preservation:low thermal ...