Notice of GW vacation

We will be closed from Saturday, May 1st to Wednesday, May 5th. We apologize for any inconvenience caused during the period, and thank you for your understanding.

Information on changes in appearance specifications

Dear customers Thank you for your continued patronage of our products. We have updated the heat treatment equipment for the purpose of stabilizing product hardness and considering the environment. As a result, most of the following products have a different appearance (color) than before, and are finished in a very pale gold color. This is… Continue reading Information on changes in appearance specifications