Steel grating is also known as steel grid plate, mesh grid is used in accordance with a certain distance and cross bar (twisted square steel, square steel, round steel, flat steel, etc.) for cross arrangement, and welded into a kind of steel products with square lattice in the middle, steel grid plate is mainly used to make gutter cover plate, steel structure platform plate, steel ladder step plate and so on. The cross bar is generally made of twisted square steel. Steel grid plate is generally made of carbon steel, the appearance of hot dip galvanized, can play a role in preventing oxidation. It can also be made of stainless steel. Steel grid plate with ventilation, lighting, heat dissipation, anti-slip, explosion-proof and other properties.