As a professional supplier of machining in China, we offer all kinds of machining services according to customers' different requirements. Black oxide is used to provide protective, corrosion-resistant coatings on metals. It has a uniform black surface and will not change the size of the part after processing. The coating does not chip or peel and acts as an absorbent for absorbing oil or wax. 

Black oxide coatings are used in sports goods, spark plugs, furniture supports, lawnmower blades, and other products that require a uniform black surface. This coating is very economical and provides a variety of valuable properties to extend the service life and improve the performance characteristics of the consumer IOT products. When using this surface coating, there is no dimensional change. If you are searching for such a supplier, please contact us soon by email or online message.