The common steel coils are galvanised steel coils, galvalume steel coils, colour coated steel coils, generally 0.3mm-1.0mm thickness, 1250mm width, one 20GP container can hold up to 28 tons of steel coils, one roll weighs 3 tons to 5 tons, the weight of each tonne is determined by the thickness and width.

The higher the zinc content, the better the corrosion resistance and the longer the service life