... 3>big weight, intensity 4>Material: Carbon Steel... industrial metal walkways steel gratingSpecifications1>Bearing bar pitch:30,40,60mm ... dipped galvanized,Painted etcSteel Grating is used in power plants,chemical plants,oil refinery,iron or steel works,machine factories, ... paper mill,cement mills,medicine plants and foodstuff factories,for uses of gangways and platfoms ...