It is composed of surface layer, edge sealing, upper steel plate, filler, lower steel plate, beam and bracket. The edge seal is a conductive black tape (no edge seal on the floor). Surface layer: generally PVC, HPL or ceramic. Anti-static floor steel plate: high quality cold rolled steel plate, one stamping molding, high dimensional accuracy. Bottom steel plate: deep tensile cold rolled steel plate, bottom special pit structure, increase floor strength, multi-head spot welding, surface electrostatic painting treatment, corrosion and rust prevention.