tender for e-tender for heart valves (mechanical) and prosthetic rings for ctvs department , mechanical mitral valve, bileaflet and rotatable, sizes 21-35, 10 year clinical data in indexed journal , monoleaflet mechanical mitral valve, sizes 21-33 mm, 10 year clinical data in indexed journal , monoleaflet mechanical aortic valve, sizes 17-27 mm, 10 year clinical data in indexed journal , mechanical aortic valve, bileaflet and rotatable, sizes 17-27 mm, 10 year clinical data in indexed journal , mitral bovine pericardial valve, sizes 25-35 mm, 3rd generation, 10 year clinical data in indexed journal , bovine pericardial aortic valve, sizes 19-29 mm, 3rd generation, 10 year clinical data in indexed journal , mitral porcine bio prosthetic valve, sizes 25-33 mm, 3rd generation, 10 year clinical data in indexed journal , porcine aortic valve, sizes 19-27 mm, 3rd generation, 10 year clinical data in indexed journal , mitral dry stored bovine pericardial valve, three stage integrity preservation enabling dry storage, should have expansion zone designed for potential future valve in valve, sizes 25-35 mm , aortic dry stored bovine pericardial valve, three stage integrity preservation treatment enabling dry storage, sizes 19-25 mm, should have expansion zone designed for potential future valve in valve , suture less aortic bio prosthetic valve (bovine pericardial), sizes 19-27 mm, precise positioning with guiding sutures, absence of sewing cuff, elastic stent , stentless aortic bioprosthetic valve, stent less design, sizes 19-27mm, 10 years durability and hemodynamic clinical data in indexed journal , mechanical aortic valve conduit, sizes 19 mm to 33 mm, double velour woven fabric, collagen impregnation, 10 year clinical data in indexed journal , pericardial valved conduit, sizes 12-24 mm and beyond upto 33 mm in adults , bovine jugular valved conduit, sizes 12-22 mm, 10 year clinical data in indexed journal , mitral semi rigid 3 -d ring, sizes 24-38 mm, mimicks physiologic