Preventive And Corrective Maintenance Of Medical Technical Equipment In The Operating Room Of The Sale Prefectoral Hospital Center, Distributed Into 02 Lots: Lot N°01: Preventive And Corrective Maintenance Of Medical Technical Equipment Of The “Geuder” Brand Operating Theat Lot N°02: Preventive And Corrective Maintenance Of Medical Technical Equipment Of The “Ems” Brand Operating Theat