... 2.Cross bar pitch;50,100mm 3.Best price Material:low-carbon steel,stainless steel,glass fiber steel etc..Surface treatment ... 5, 25X4.7, 25X5…..40X6, 40X8, 40X10,….90X6….Pitch of Load bearding flat bars(mm)12.5,15, ... steel frame lattice Glass fiber steel case board Plug-and-socket steel gratingComposite steel grating Platform steel grating Ditch cover plate Ladder pedal (foot pedals) high quality steel ...