A.振動堆焊 B.金屬噴漆 C.鍍鉻 D.鑲套
A.0.05~0.1mm B.0.1~0.2mm C.0.2~0.4mm D.0.4~0.5mm
A.0.1mm B.0.2mm C.0.3mm D.0.4mm