... alloy or Q235 being galvanized or baking varnishedType: Flat iron: W:200,300,400,500,600,800,(mm),etc L:1500 ... ,2000,3000(mm),etc. Channel iron: W:200,300,400,500,600,800,(mm),etc L:1500 ... ,2000,2500(mm),etc. Light type: W: 400,(mm),etc L:2250,3000(mm),etc. Square tube ... L:1500,2000,3000(mm),etc. Aluminium alloy 34/45/50: W:200,300,400,500,600,800,(mm),etc L:3000 ...