... flat steel bar in accordance with a certain spacing and cross-arranged and welded into the middle of a square lattice ... with an iron and steel products, steel mesh monoblock Main use to do the ditch cover, steel platform plate, steel ladder stepping boards ... w-2, 30/100, 40/50, 60/100 and allGrating Application:steel platform, flooring and walkway, trench cover, stair tread contact personMichelle Gao ...