600mm diameter pipe 1:ASTM A106/A53-B API5L-B 2:OD:12-916mm WT:2-20mm 3:Certificates:ISO & API 600mm diameter pipe(1) Product ... Name: Large diameter longitudinal seam welded pipe(2) Brand : Tianlong (Manufacturer ) (3) WT ... fluid,Construction,Electricity,Machine building industy,Chemical industy,Petroleum,Traffic. 600mm diameter pipe