Spiral welded steel pipe

1.Double-side Spiral Submerged-arc Welded Steel Pipe

2.DN(219mm--2420mm)steelpipe

3.Wallthickness(5.6mm--20.6mm) steel pipe

4.Excutltive Standard:API5L steel pipe

5.Grade:B(L245)*42(L290)*52(L360)*60(L450) steel pipe