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15
2020-11
1. The operator should wear protective glasses to protect the eyes. When working with the face up, wear a protective mask....
15
2020-10
Common faults of electric hammers are: the motor does not run after power is connected; abnormal screams occur after power is connected and do not rot...
15
2020-09
In life, most people don’t know the work and functions of electric tools, especially electric drills, impact drills...