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1.Product Name:Welded Steel Pipe
2.Standard : OD:3"-26"
WT: 4-16mm
3.Length:6-12m
4.Executive Standard: China:GB/T 8162-1999
America:ASTM53-A.B.F
German:ST 33
5.Characteristic: high technical , high added valuel ,cost - effective and uniform wall thickness
20#45#16Mn hot expansion seamless Steel tube