1,Size:32,40,50,75,110,160,200,250 2, Certification:GB,IEC,ROHS,CE,ISO 3,Powerful fire resistant 4.Delivery need 25days Good Insulativity pipes thick wall pvc pipe 1,Size:32,40,50,75,110,160,200,2502, Certification:GB,IEC,ROHS,CE,ISO 3,Powerful fire resistance4,Delivery need 25days5,Professional QC 6,Length:4-6m7,Thickness:2.0-7.8m mInstruction:---Easy to be installed.---Aging resistance and long ...