... :30,40,60mm Cross bar pitch:50,100mm Steel Frame Lattice: Material:galvanized sheet,stainless steel sheet, Bearing bar pitch:30 ... bar pitch:50,100mm sheet thickness:3,4,5mmSteel frame lattice:Series 1(spacing 30mm steel plate)is the most common ... mill.Steel grating:This product is appliacble to the industrial building, public facilities, device frame, platform, floor. Sideway, stair tread, trenchcover ...