A.0.05~0.015mm B.0.2~0.5mm C.0.5~4mm D.4~8mm
A.旋風(fēng)車削螺紋 B.高速車削螺紋 C.攻絲 D.套絲
A.旋風(fēng)車削螺紋 B.高速車削螺紋 C.套絲 D.攻絲