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Steel grating cross arrangement of flat steel in accordance with a certain pitch and the crossbar (twisted square steel, square steel, round steel, flat steel, etc.), and welded into the middle with a square lattice of an iron and steel products, steel gratingMain use to do the drain cover, steel platform boards, steel ladder treads. The crossbar generally use the twisted square steel. Steel grating generally use made of carbon steel, hot dip galvanized appearance, can serve to prevent the oxidation of. Can also be made of stainless steel. Grating with the ventilation, lighting, cooling, non-slip, explosion-proof performance.