steel pipe for general use: ASTM A 53 GR.B, Steel Grade: SA53B
> and specication O.D:1/2"-28",21.34-711.2mm W.T: SCH10S- SCH120 2.Seamless
> steel pipe for high temperature:ASTM A 106 GR.B, Steel Grade: SA106B and
> specication O.D:1/2"-28",21.34-711.2mm W.T: SCH10S- SCH120; 3.Seamless steel
> pipe DIN2448/1629,DIN17175, German standard, Steel Grade:
> st37,st42,st52,st35.8-st45.8/1, specication O.D: 1/2"-28",21.34-711.2mm W.T:
> SCH10S- SCH120; 4.line Pipe: API SPEC5L Steel Grade :A,B,X42,X46,X52
> (PSL1)and specication O.D: 2"-28",60.3-711.2mm W.T: SCH10S- SCH120; 5.Casing
> Pipe: ALSO  Galvanization steel
> tub,ERW AND SSAW PIPE
>
> HONG jie ZHAO