The flat key connection is the commonly-used connection style, its working faces are:(Single option: 10 points)
A、Thebothsidesurfaces;
B、Theupperandlowerplanes;
C、Bothroundendsurfaces;
D、None
发布时间:2024-12-03 15:05:30
A、Thebothsidesurfaces;
B、Theupperandlowerplanes;
C、Bothroundendsurfaces;
D、None