forged 1. Precision die forged 2. Alloy steel and carbon steel 3. Normalized and hardened ... , couplings, and cups;3. Drilling components;4. Forged cylinders and mandrels; and spindles;5. Forged valve bodies and components; and6. Pistons, pins ... steel, tool steel, stainless steel, heat-resistant steel, super alloys, titanium, aluminum, magnesium and copper alloys Supplying range Shafts, Sleeves, Rings ...