Main craft: The etching (nips board), the pressure to flush, the note paint (to top up), silk India, the drop rubber, to imitate the enamel, the zinc base alloy compression casting and so on.

• 主要工艺：蚀刻（咬板）、压冲、注漆（填油）、丝印、滴胶、仿珐琅、锌合金压铸等。