... 40-140um or 280-900g/m2 3. Strong productivity GB/T 3094 erw welded hot dip galvanized carbon mild steel production hollow ... Middle east , Africa,North and South American.etcApplication Widely used in construction, bridge, fence, greenhouse, highway, windows of model steel ... Welcome (SGS, BV, Intertek) Application If you are interested in our products, please do not hesitate to contact us! Contact ...