Technicians and engineers are working to extend the life of old subway cars in one of the great workshops of the STM in Montreal. Technicians who repair, disassemble and reassemble parts. Mechanical parts lined up on the workshop floor. Car with the logo of the STM, workshop. Subway cars in a hangar. Opening of a garage door, a subway car is behind the door. Keywords: MECHANIC,METRO,MONTREAL (CITY),ACRONYM AND LOGO,STM,PUBLIC TRANSPORT