For rhe sometimes shoots up taller like an India rubber ball.

他有时会像一个印度橡皮球一样一会一个高度。

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。