The basic idea of Edison Hard treatment, "hard and does not chip," was to create a flexible nitriding layer. Our technology began with the use of a lower temperature for the nitriding process. In order to realize this ideal, we developed all of our nitriding furnaces in-house, enabling us to achieve the ideal low temperature nitriding process.
In addition to surface treatment, the Licht Seiko Group provides total support for vacuum heat treatment, vacuum carburizing heat treatment, and various analyzes.

We can process anything from precision parts to large parts.
Please contact us for details.