... paint and process according to client's requirement Paint steel ladder is made by stairtread and we can paint and ... stair tread, fence,clips, chench cover, handrail stanchion, walkway, steel ladder and so on. These products are widely used on mine ... bar(load bar):20x3 ..... 75x10 mm.2. Bearing bar pitch: 12.5, 15, 20, 23.85, 25, 30, 30.16, ... 3).UK: BS4592-19874).Australia: AS1657-1985 Paint steel ladder