Spiral Welded Steel Pipe 1.grade:Q235,Q345,10#,20#,16Mn, ... T 3.OD:219-3000mm thickness:6-25mm Spiral Welded Steel Pipe1. Material:Q235,Q345,10#,20#,16Mn,L245, ... OD:219-3000mm thickness:6-25mm4. Length: 12m or as per request5. Application: For linepipe in petroleum and natural ... Steel Pipe1.grade:Q235,Q345,10#,20#,16Mn,L245,X802.standards:API,GB/T3.OD:219-3000mm thickness:6-25mm Spiral Welded Steel Pipe ...