1. The surface finish of the product is good, generally reaching Ra6.3 or even Ra1.6.
2. No heat treatment is allowed.
3. The product has high tightness, high casting strength and surface hardness, but low elongation.
4. The mold cost is high and the service life is short.
5. High production efficiency.
6. Thin-walled parts can be produced with a small machining allowance.