... °SurfaceAccording to your requirementTypesElbow,reducer,tee,flange,steel pipe,bend,steelbar..EndBeveled or square cut plastic capedPackingIn wooden ... fluid tube10#,20#,Q295,Q345,Q390300006Structural use of seamless steel tubes10#~45#,40Mn2,35Cr,35CrMo500007Hydraulic pillar ... pressure fertilizer equipment20G,15MnV10009Shipping use of tube320,4101000Total200000 carbon seamless steel pipe