Our product was passed ISO 9901 Certification STEEL ESCAPE LADDERFEATURES:Made of quality Steel rungs with anti-rusting treated.The ladder is capable to support 500~900 kgs of weight and the rung itself can support 180-350kgs.Wall Hook width: 150mm(6''), 180mm(7''), 240mm(9.5'') and more size available......SPECIFICATIONS AND QUALIFICATIONS: TypeLD-ST-5LD-ST-7LD-ST-10LD-ST-13LD-ST-16LD-ST- ...
