... ,stamping 3.Certificate: ISO9001:2008 4.Inspection:CMM Customized metal box process with sheet metal fabricationMaterial: SPCC, SGCC, SECC,Stainless Steel, Carbon Steel ... , Aluminum, Aluminium Alloy etc Surface treatment:Powder coating& textureProcess:Sheet metal workingPrecision: 0.01~0.05 mmUsage: Machinery,Home appliances,medical ...