Rust removal level of shot blasting machine

The steel surface that has undergone shot blasting and rust removal has no visible oil stains, and there are no loose

 attachments such as oxide skin, rust, paint coatings, etc.

After shot blasting and rust removal, the surface of the steel should be free of visible oil stains, scale, rust, paint coatings, and impurities, and the residue should be firmly attached.

The steel surface that has undergone shot blasting and rust removal should have no visible attachments such as oil stains, scale, rust, and paint coatings, and any remaining traces should only be slight color spots in the form of dots or stripes.

The surface of the steel after shot blasting and rust removal is free of visible attachments such as oil stains, oxide scales, rust, and paint coatings, and the surface presents a uniform and consistent metallic luster.