Supply steel ladder 280 * 200

It is suitable for sewers, water pipelines, power transmission cable pipes, communication cables pipelines, mines, and down the chimney, and so need to work place. 
 This product is outsourced by the Φ20MM round and polypropylene copolymer plastic layer. Plastic by injection molding. Features of the product is outsourced polypropylene plastic with a high temperature, high humidity, no distortion, no loss and other characteristics, so to overcome the past by twisted steel or cast iron will rust falling off ladder defects. Plastic chemical attack of iron ladder in the medium, long-term does not rust, keep the design of mechanical strength.