Supply Of 1 Aortic Valve Monoleaflet With Rigid Tilting Disc With A Cobalt-chromium Alloy Frame Sizes 17mm/19mm/21mm/23mm/25mm/27mm, 2 Aortic Valve Conduits .the Conduit Should Be Made Of Collagen Impregnated Double Vellour Dacron Size 29mm & 3 Mechanical Prosthetic Bileaflet Valve For Aortic / Mitral Position Sizes Should Be Exchangable As And When Required Irrespective Of Aortic Or Mitral Position.