1. Cleaning the plate: clean the surface of the plate to remove any sundries and dirt.
2, set of quota: according to the above factors, choose the appropriate set of quota, set of quota evenly daub on the board, be careful not to daub too much or too little.
3. Keep the plate flat: put the plate coated with a set of quotas on a flat surface, keep the plate flat and free from external interference, and wait for this set of quotas to play a role.
4. Check the flatness: After the plate is placed for a period of time, you can check whether the flatness of the plate meets the requirements. If it does not meet the requirements, it needs to be re-operated or replaced.