S550GD+ZM steel hot dip Zinc coated steel
Key words: S550GD+ZM steel, 1.0 531 +ZM steel, S550GD+ZM Zinc-magnesium alloy coated steel , S550GD+ZM steel coil, S550GD+ZM steel price, S550GD+ZM steel specification, S550GD+ZM steel supplier, S550GD+ZMM steel sales, S550GD+ZM steel manufacturer. What's S550GD+ZM steel ? ANSWER: S550GD is a steel grade in European standard EN10346 , S550GD is construction quality steel material, The material No. of S550GD is 1.0 531 .