【化】 金属加工

非常简单的部件，需要些焊接，弯折，折叠，装配和电镀的金属板。

base metal

frame made of pressed metal

road metal paving (crushed-stone pavement)

metal foil overlay

treating the metal in the mould with gas pressure

sizing sheet (sheet metal) (plate)

SEVERING of metal by rolling B21B 15/00

Metal-Clearing Phlegm-Transforming Decoction