Composite steel grating plate is a product composed of steel grating plate with certain bearing capacity and checkered plate with sealing surface. After hot-dip galvanizing treatment, the composite steel grid plate will warp due to heat. Especially, it is difficult to level the steel grid plate with larger model. Please pay attention to the type selection. Composite steel grating is a product composed of steel grating with certain crossing capacity and checkered plate on sealing surface. It can be combined with any type of steel grating and checkered steel plate with different thickness. But the most commonly used steel grating is G323/40/100 as the base plate; The checkered steel plate is usually 3mm thick, and can also be 4mm, 5mm or 6mm thick.1. High strength, light structure 2. Strong corrosion resistance and durability 3. Beautiful appearance and bright surface 4. No dirt, rain and snow, no water accumulation, self-cleaning, easy maintenance 5. Ventilation, lighting, heat dissipation, anti-skid, good explosion-proof. 6. Easy to install and disassemble.1. The steel grating or step plate shall be directly welded on the supporting steel structure, and the welding position shall be painted with two coats of zinc powder paint. 2. It is installed with a special installation clamp for steel grating, which does not damage the galvanized layer and is convenient for disassembly and assembly. Each set of mounting clip includes one upper clip, one lower clip, one M8 round head bolt and one nut. 3. The stainless steel mounting clip or bolt connection and other fastening methods can be provided as required. 4. The installation clearance of steel grating is generally 100mm. 5. During installation, pay attention to the firm and reliable installation, and check frequently to prevent the installation clamp from loosening and falling off. It is better to weld or add rubber pad on the steel grating close to the vibration.