... pitch:30,40,60mm Cross bar pitch:50,100mm Steel Frame Lattice: Material:galvanized sheet,stainless steel sheet, Bearing bar ... of products of bearing flat-steel center distance 30mm for American standards. And in the steel plate series, the surface ... product is appliacble to the industrial building, public facilities, device frame, platform, floor. Sideway, stair tread, trenchcover, fencing and ceiling ...