Internatioanal Standard ISO 9001-2000 Standards ASTMA53,BS1387-1985,GB/T3091-2001,EN39,BS1139 Materials Q195,Q215,Q235,Q345 Product Category Metallurgy,Mineral &Energy Technique Welded Packing 1.Big OD:in bulk 2.Small OD:packed by steel strips 3.woven cloth with 7 slats 4.according to the requirements of customers Usage Mechanical&manufacture,Steel strcuture, Shipbuilding,Bridging,Automobile chassis Main market Middle East,Africa, Asia and some Uropean country and America ,Australia Country of origin China Productivity 5000 Metric Tons pet Month