... Steel grating: 1.Bearing bar pitch:30,40,60mm 2.Cross bar pitch;50,100mm 3.Best price Material:low-carbon steel,stainless steel ... and durable, easy to clean, convenient installation.Grating Dimension Load Bearing Flat Bar sizeThickness≥3mm, depth ... steel frame lattice Glass fiber steel case board Plug-and-socket steel gratingComposite steel grating Platform steel grating Ditch cover plate Ladder ...