Seamless Pipes Manufacturing Process

The common materials: 20# and Q345. Technical Standard: API 5LB, ASTM A106 GR.B.ASTM A53 GR.B; High-pressure boiler pipe GB5310-1995, Special pipe for ferftlizer making GB6479-2000, pipe for petroleum cracking GB9948-2000, low- and medium-pressure boiler pipe GB3087-1999, fluid pipe GB/T8163-1999, structural pipe GB/T8162-1999 and hydraulic support pipe GB/T17396-1998.