... : 102 cm With CE/ EN131 Aluminum multi-purpose ladderScaffolding ladder,all kinds of aluminum ladder manufacturer With CE ,4X2,4X3 ... you Choose Wanyu Multi-purpose Ladder:1: Aluminum material(1) All of our aluminum material are bought from large state-owned ... certificate.(2)All of our aluminum material are made of 100% aluminum ingots. Never use recycle aluminum.(3) Aluminum alloy: 606.Thickness :1. ...