1. The machine adopts high strength and high quality castings, fully aging treatment, eliminate the residual stress, ensure accuracy of punch, host long use life long type equipment thaan 2-3 times.
2. The machine is adopted for oil system, ensure compulsory components in running under the apperarance of oil membrance, to ensure the quality of the machine.
3. Each screws are using 12.9 grade high-strength screws solidity.
4. And angle face is made throught the traditional maual chipped, less than 0.02mm every part clearance.