buried and concealed spiral heating wire,injection moulding Material: PE80 or PE100Sizes: DN20 to DN800Pressure Rating:1.0Mp or 1.6MPaColors: blue, black or other colors on requestConnection: Butt fusion , electro fusion or socket fusion jointStandard: AS/NZS 4129:2000, GB/T13663.2-2005 , Din16963, ISO or CENTC155Certification: SAI, ISO9001, ISO14001, OHSAS18001Applications: water supply, sewage ...