... Mild Steel Surface: U,P and G steel bar gratingSteel bar grating can be used for:1.Trench coverApplication:city-road ... plate nosing or nonslip plate nosing3.GuardrailApplication:boiler factory,electric power plant,dockyard,metallurgic plant,petrochemical works, ... and others.5.Suspended ceilingApplication:tobacco manufacture,industrial factory building,large-scale stadium and gymnasium,convention and ...