... :0.6mm - 20mm 3.Spec.:A500,Q195,Q235,Q345 (16Mn) Galvanized square tube Size 10*10-600*600mm W.T0.6 ... be tailored to customer requirements. Zinc coating Pre galvanized: 40-150g/m2;Hot galvanized: above 200g/m2. International Standard ISO 9001:2000 ... , Q235, Q345 (16Mn), C250... Product Category Metallurgy / Mineral / Energy Technique Welded, Cold drawn, Hot rolled, Necking. Packing 1.Big OD: in ...