a. Intuitive: easy to find waste products in the process of processing paper cups in the first time, timely treatment.
b. Convenience: In case there is a small problem with the paper cup machine. Inspection and repair are convenient. And it doesn't require a repairman to go to a lot of trouble to find the cause, and it's difficult to repair.
c. Time saving: Since all the paper cups in the process of processing can be directly seen during the operation, it can be checked while producing, saving the re-inspection before the paper cup packaging.