1. Our auto parts steel investment casting contains a certain amount of chromium, which can form a dense passivation film on the surface, effectively resisting oxidation, moisture, salt spray and chemical corrosion. 2. Auto parts steel investment casting has high strength, high toughness and excellent fatigue strength, and can maintain stable performance in both high and low temperature environments. 3. Auto parts steel investment casting through precision casting technology, we can manufacture high-precision, complex structure parts, reducing the need for subsequent machining.