Grid grating, also known as steel grating, is a type of steel product made by crossing and welding flat steel bars at certain intervals with crossbars (twisted square steel, square steel, round steel, flat steel, etc.) to form square patterns in the center. It is primarily used for drain covers, steel structure platform panels, and step panels for steel ladders. The crossbars are typically made of twisted square steel. Steel grating is usually made of carbon steel, with a hot-dipped zinc coating to prevent oxidation, or it can be made of stainless steel. It features ventilation, lighting, heat dissipation, anti-slip, and explosion-proof properties.