Astm a53 welded erw black steel tube Size10mm-457mm Wall thickness 0.5mm-20mm Length1m-12m , by customers requiremnts Internatioanal standardIso 9000-2001 StandardsAstma53, bs1387-1985, gb/t3091-2001, en39, bs1139 MaterialsQ195, q215, q235, q345 Product categoryMetallurgy, mineral &energy TechniqueWelded Packing1.Big od:in bulk 2.Small od:packed by steel strips 3.Woven cloth with 7 slats 4.According to the requirements of customers UsageMechanical&manufacture, steel strcuture, Shipbuilding, bridging, automobile chassis Main marketMiddle east, africa, asia and some uropean country and america , australia Country of originChina Productivity20000 metric tons pet month RemarkPayment terms :T/T , L/C Terms of trade :fob , cfr, cif , Minimum order : 10 tons Lead time :on or before 20 days . Addition: 1. Special design available according to clients' requirements. 2. Anti-corrosion and high-temperature resistant with black painting. 3. All the production process are made under the iso9001:2000 strickly.
