Product size: outer diameter 6mm-762mm

Product inspection: size inspection, appearance inspection, PMI material inspection, water pressure inspection, eddy current inspection, non-destructive inspection, mechanical performance inspection, intergranular corrosion inspection, etc.

Production standards: GB/T 14976-2012, GB/T 13296-2013, GB3087-1999, GB5310-1995,.GB/T 21833-2008, ASTM-A312, ASTM-A213, ASTM-A269, etc.