+ISO9001:2008 CE RoHS for OEM Sheet Metal Steel Box +Provide OEM service ... Surface color: natrual ,black,matt black, green, red,yellow,silver,white,blue,andother,surface colors upon ... Iron(SPCC, SECC, SPTE, Tinplate), Aluminum Alloy, Red copper, Brass, Bronze alloy or according to your request.5. ... request. We are a factory which specialized in sheet metal producsts since 2007. Any question, please feel ...