Can stainless steel castings be mirror-finished?

The mirror treatment effect of stainless steel castings can be achieved in the following ways:

Appropriately reduce the content of alloy elements in precision castings and minimize the content of impurities.
Reduce impurity ions in the bath liquid and keep the bath liquid fresh.

In addition, the sulfuric acid oxide film is also an important factor affecting the high purity and transparency of the oxide film on stainless steel castings. Its thickness, porosity, purity, sealing quality, etc. will directly interfere with the mirror effect of the casting.