Generally, the medical parts need extremely high quality, especially related to life. So sometimes, we have a special surface treatment to the parts, like passivation. Passivation refers to the process in which metal is oxidized by strong oxidant or electrochemical methods to make the surface inactive, that is, passivation. 

Passivation is a method to transform the metal surface into a state that is not easy to be oxidized and delay the corrosion rate of the metal. In addition, the phenomenon that an active metal or alloy becomes a noble metal with its chemical activity greatly reduced is also called passivation. Forlong has rich experience in machining passivation medical devices, welcome to communicate with us about your project. We, being one of cnc machining parts suppliers, are sure to support it to you all the time.