Special tool design- Jig manufacture
- Knurl to be chiseled (straight and slanted)
- Ultrasonic cleaning
- Circular engraving
- Flat engraving
- Bead blasting
- Sand blasting
- Dash polishing
- Polishing
- Broaching (blind hole)(Sackloch)
- Slot-broaching (passage)
- Welding
- Brazing
- Leak testing (inflation pressure 20 bar)
