Adopt crank shift , link mechanism , and gear drive to improve work efficiency .
Adopt crank shift , link mechanism , and gear drive to improve work efficiency .
采用曲柄、连杆机构，齿轮传动，省力是提高工作效率的利器。
Adopt crank shift , link mechanism , and gear drive to improve work efficiency .
采用曲柄、连杆机构，齿轮传动，省力是提高工作效率的利器。