1) . it is strictly forbidden to operate the machine by people under the age of 16.2) In order to ensure the safety and normal operation of the person and the machine, a special person shall be designated to be responsible for the storage a...
1. If the rivet head of the impeller is worn, the worn rivet head can be returned to the original normal state by pressing the impeller body and the hub and surfacing with electric welding.2. In the case that fatigue cracks are easy to occu...
