... industrial engineering 6.Galvanized Steel Grating Steel grating has many advantages such as light weight,great load-bearing capacity,non ... floor,walkway,stair treads,trestle,fending,drainage trench cover,pit cover,suspended ceiling,ventilates and light through facility,etc. Steel GratingSteel grating ... projects and environmental projects. 29)stainless steel floor grating/steel deck grating(10 years)