Platform steel grating, also known as "hot-dip galvanized steel grating platform", is a widely used steel grating product. This kind of steel grating is widely used in various fields of industry and has strong resistance to surface impact. Especially, the steel grating with a spacing of 50 mm has strong resistance to lateral impact. The application range of platform steel grating is very wide. Generally, all kinds of platforms for factory, workshop, mining, port and warehouse construction can be selected, beautiful and elegant, and easy to install. It is a new type of building product. Riser plates (edge plates), checkered plate guards, and connecting pieces and other accessories can be added around. The flat steel with different specifications of flat steel can be used for edging, or angle steel, channel steel, square tube, etc. can be used for edging; Handle and hinge can also be installed on the steel grating that needs to be moved or opened frequently. It is possible to weld the skirting plate (edge guard plate), the checkered plate guard plate, and install the connectors and other accessories around. The flat steel with different specifications from the loaded flat steel shall be used for edging, or the angle steel, channel steel, square tube, etc. shall be used for edging. Handle and hinge can be installed on the platform steel grating that needs to be moved or opened frequently.1. According to the welding method, it can be divided into: pressure welded platform steel grating, embedded platform steel grating, through-lock platform steel grating and through-welding platform steel grating. 2. According to the shape of the loaded flat steel side surface, it can be divided into plane steel grating, tooth steel grating and "I" steel grating. 3. According to its purpose, it can be divided into general purpose steel grating and special purpose steel grating, such as trench cover plate, step plate, etc. 4. According to the spacing of loaded flat steel: the center distance of two adjacent loaded flat steel is usually 30MM, 40MM and 60MM according to the spacing of cross bars: the center distance of two adjacent cross bars is usually 50mm and 100mm.It is widely used for platforms, walkway covers, manhole covers, ladders, fences, etc. in the fields of chemical industry, electricity, tap water, sewage treatment, ports and wharves, building decoration, shipbuilding, self-propelled parking lots, municipal engineering, sanitation engineering, etc. Beautiful and elegant, easy to install, it is a new type of building product.