... :aluminum,brass,iron 2.automatic progressive,high quality control system 3.ISO9001 2013 China best square steel tube bending Production Description Haiyan ... bending, welding, milling, CNC lathe…4) usage of products: Furniture fitting, construction hardware , telecom ,auto,machine…5) terms of trade: ... -13646737163Tel :86-0573-86887878 Fax :86-0573-86887758 2013 China best square steel tube bending