Sheet metal folding machines. 1.Material:iron(SPCC,CECC,SGCC). 2.Process:CNC punching,bending,press rivets. 3.Powder coating. Item namesheet metal ... .3) Finish:plating(Zinc,Nikel,Chrome,Tin,Ag),painting,powder coating,anodizing,welding or as request.4) We engage ... ,etc. 6) Strict quality control system, including the raw material inspection, in-process inspection in every process and final inspection ...