... a double sided step ladder, stair step ladder, stair platform, extension ladder, standoff ladder, platform and freestanding ladder. Made to European Standard ... , EN131 Certified. A Step ladderstright ladderM size ladder with plateusing this seriesfolding seriespacking picture The reasons of ... % aluminum ingots. Never use recycle aluminum.(3) Aluminum alloy: 606.Thickness :1.2~1.3mm.2 :Rubber(1 ...