tsingshan steel pipe
1.we supply ERW steel pipe
2.OD:57mm-325mm,thk:3mm-20mm
3.quality:ISO9001,2000
4.market
tsingshan steel pipe 1)Thickness:2.5-75mm 2)Outer Diameter:32-630mm 3)Application:Fluid Pipe 4)Certification:ISO9001:2000
GB/T8163-2008 seamless steel pipe for fluid transport