... year!! Our products are a part of construction. We produce steel grating, stair tread, fence,clips, chench cover, handrail stanchion, ... walkway, steel ladder and so on. These products are widely used on ... Cross bar pitch: 38,50,76,100,101.6mm4. Material: Q235, Stainless 3045. Surface treatment: black, galvanized, paint6.Standards:1).China ...