Spiral steel pipe itself has no life limit, and the service life is mainly related to the operating environment and production process. Spiral steel pipe operating environment is relatively poor In order to extend the service life, the oute.
schedule 40 steel pipe,schedule 40 pipe,Standard:ANSI,DN,JIS.API.API 5L . API 5CT.BS ,These pipes are wldely used for fluid pipe,structure pipe, water pipe etc.
petroleum line pipe,oil casing pipe,petroleum casing pipe,OD: 114.3-397.3mm 2.WT: 5.21-11.43mm 3.Material:A25,A,B,X42,X46,X52,X56,X60,X65,X70,X80 H40 J55 K 55 M65.