... used for drain covers ,ladders steps ,walkways grating ,platforms grating ,ditch grates ,sidwalks grating and flooring grating ect .it also can be used in ... so on .we offter the good products and best price .Grating Dimension Bearing bar pitch(mm)12.5, 15,25, 30 ... grates,fences,framedgrates,trash rack grates ,paint backing chambers…… ditch cover grating