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Blackening Coating: process flow of metal blackening is as follows: Degreasing: Boil the parts in degreasing solution for 20~30 minutes at 80~100 ℃. Cold water cleaning: rinse with flowing clean water. Pickling: wash ...

Anodizing: process described for anodic oxidation requires the following processes: 1. Check whether the surface of the parts to be oxidized meets the oxidation conditions, such as polishing, deburring, etc. 2. ...

Blackening Coating: process flow of metal blackening is as follows: Degreasing: Boil the parts in degreasing solution for 20~30 minutes at 80~100 ℃. Cold water cleaning: rinse with flowing clean water. Pickling: wash ...

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Blackening Coating