... epoxy powder, copolymer gel, PE anti-corrosion layer 2, Applications: for water, oil, nature ga Quick Details Place of Origin: ... : epoxy powder, copolymer gel, PE anti-corrosion layer2, Applications: for water, oil, natural gas transmission meAnti corrosion layers1.3PE ... . Good environmental protection, convenient local maintenance7. Long life for more than 50 yearsReference standards:1.CJ/T200-2004: ...