... folding machines. 1.Material:iron(SPCC,CECC,SGCC). 2.Process:CNC punching,bending,press rivets. 3.Powder coating. Item namesheet metal folding ... electrical equipment,electron,light-fixture,sound,radiator,etc and electronic locks,car materials and so on.5) We manufacture ... Sangfei.5) With advanced equipment of CNC punching machines, CNC bending machines,stamping machine,welding machine,etc. 6) Strict ...