... can be designed, according to your requirements.3.surface treatmentzinc/nickel/chrome plating/hot galvanized ... .4.material:aluminum,brass,alloy,stainless steel,iron,cold-plate,hot-plate,galvanized ... sheet,SECC,phosphor-copper,etc.5.deep process: cutting, milling, drilling,punching ... mainly use for computer,auto or other household appliance .7.High quality guranteed 2012 best OEM Aluminum ...