Outstanding heat treatment technology has a great influence on its quality. We imported the superb audio induction equipment and carburizing and hardening equipment to improve heat-treatment production quality and reduce the size deviation, Enhancing its anti-wearing and anti-twisting abilities, preventing products from noising and vibrating.

carburizing and hardening equipment

the superb audio induction equipment controls inner
and outer joints’ surface hardening layer
within 2mm, keeping its anti-wearing and anti-twisting abilities.