1. Closed-die forged parts in carbon steel and alloys up to 80 kg from Italian suppliers.
2. Drop-forged parts in carbon steel and alloys from Italian forging, including machining.
4. Castings from special steels, also highly alloyed, from primary German suppliers.
5. Castings in brass completely machined by a primary Turkish company.
6. Mechanical machining to complete the iron castings and the forged parts.
7. Mechanical machining by a leading Italian supplier in the production of GROB toothing.