... welded steel pipes 1.OD: 10-426MM 2.WT: 0.6-30MM 3.Standard:ASTM GB BS DIN EN 4.Good ... quality, fast delivery Dimension,thickness,length,material,end,surface, and so on, all of those can ... large diameter welded steel pipes GB ASTM EN Dimension20-246MMThickness0.6-2.5MMLength5.8-12M or customized End treatmentplain,beveled, /threaded ...