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1. The lifting platform moves bobbins and modul frame from EMS trolley to the designated location and waits for the stacker to store them.

2. The stacker takes out the bobbins and modul frame from the lifting platform and puts them into the designated storage position. 

3. The stacker moves bobbins and modul frame from storage position to the lifting platform,waiting for the EMS trolley transports them to the next location.