... design or sample welcome. 3.delivery timely, good quality sheet metal box baseMaterial: Stainless Steel, Iron(SPCC, SECC, SPTE, Tinplate ... ), Aluminum Alloy, Red copper, Brass, Bronze alloy or according to your request.Processing ... Steel, Iron(SPCC, SECC, SPTE, Tinplate), Aluminum Alloy, Red copper, Brass, Bronze alloy or according to your request.Processing ...