Sheet metal folding machines. 1.Material:iron(SPCC,CECC,SGCC). 2.Process:CNC punching,bending,press rivets. 3.Powder coating. Item ... 2) Materials: stainless steel, iron, aluminum, brass, alloy etc.3) Finish:plating(Zinc,Nikel,Chrome,Tin,Ag),painting,powder coating ... .Company Introduction1) direct manufacturer have 14 years experience in sheet metal fabrication.2) More than 100 skilled workers and ...