... (strips between 300mm ,the pallents around 3tons)Coil DM: I.D: Φ508mm/610mm O.D: Max Φ1400mmSurface type: Big spangle ,normal spangle, min ... -2.5Main usageWelded pipe production, billet for cold-formed steel, C/U channel, T-bar, saw blade, washer, blade etc.Annual ...