... experiences of machining 3.machining directly from steel profile & aluminum profile Description:1.Name: precision carbon steel & alloy steel machining2.Material : Q345, SUS3163.Process: cnc ... part, truck part ItemDescriptionProduct ClassMachiningMaterialCopper, Carbon steel 25#, 40#, Stainless steel such as 304, 316, alloy steel 40Cr, 20Cr, Aluminum alloy profileT6061, ect ...