Compound Steel Grating is an innovative steel grating product that combines the load-bearing capacity of steel grating with a sealed checkered steel plate or steel mesh on the surface. It can be composed of various types of steel grating and industrial steel plates with different thicknesses. The most commonly used configuration is G323/40/100 steel grating as the base plate and 3mm checkered steel plate as the top plate, but other thicknesses like 4mm, 5mm, or 6mm can also be used.