Tender For supply of polyaxial pedicular screw system 6.20 mm any size , 1. should becompatible in minmally invasive system, 2. made of titanium, 3. company providing screwshould provide complete range of minmally invasive accessories including mis tubularsystem 4. the screw should be compatible,navigation with multi level misfixation,navigation with system for compression and deduction.