sheet metal box 1.ISO9001-2008 2.customers' design or sample welcome. 3.delivery timely, good quality sheet metal boxwe are a professional manufacture of hardware ,established in 2003.with over 9 years professional manufacturing experience and advanced techniques , we can produce different metal boxes .Material: Stainless Steel, Iron(SPCC, SECC, SPTE, Tinplate), Aluminum Alloy, Red copper, Brass, ...