3PE Coated Steel Pipe
Base pipe and coating under one roof: spiral or ERW base pipe coated to GB/T 23257 / DIN 30670 without third-party handling.

3PE / 3LPE / 3PP coated pipe on spiral or ERW base — one mill, one coating line, one certificate package.
Base pipe and coating under one roof: spiral or ERW base pipe coated to GB/T 23257 / DIN 30670 without third-party handling.