API 5L GrB stainless steel pipe OD:13.7-1220mm WT:5-80mm Length:5.8m,random length Application:structure pipe,drill pipe API 5L GrB stainless steel pipeOD:13.7-1220mmWT:5-80mmLength:5.8m,6m,12m,random lengthApplication:structure pipe,drill pipe,gas/oil pipe,dyraulic pipe etc.Surface Treatment:varnish,3lpe coating,galvanizedAPI,PED,ISO certificate,DIN,JIS,GB,BS,GOST standardMaterial:Q235,Q345,16Mn ...