(1)All of our aluminum material are bought from large state-owned factory. Each batch has quality certificate.EN131 standard.
(2)All of our aluminum material are made of 100% aluminum ingots.

Never use recycle aluminum.
(3)Aluminum alloy:

For most of our aluminum ladders, the thicknessof the material is 1.5mm , some are 1.2mm . Really sorry that wedon''t supply the 0.8mm or 1.0mm ladders. You can check this by theweight of the ladder easily.