The main production:solid oil switch contact, solid self-contact and alloy material for contact.

主要产品油开关整体触头、自力型整体触头及触头用合金材料。

youdao

The main production:solid oil switch contact, solid self-contact and alloy material for contact.

主要产品油开关整体触头、自力型整体触头及触头用合金材料。

youdao