... .small / OEM orders accepted 4.punctual delivery steel query machine enclosure MaterialKinds of sheet metal, as per customers ... 4M*2M); German TRUMPE full-automatic CNC Punching Machine; German TRUMPE CNC bending machine; Japanese / Swiss Folding machine, etc. Surface treatmentplating, ... thickness has reached 25mm of carburizing steel, 20mm of stainless steel, 12mm of aluminum panel. 3.ISO9001 ...