supply of visco-elastic coating substance for phaco-emulsification : specifications: 4% chondroitin sulphate and 3% sodium hyaluronate in the ratio of 1:3. ii) to be supplied in a pre-filled syringe 0.75ml or more in a sterile pack. iii) sterile 27 gauge cannula to be included along with the pack. iv) sample of item must be included for inspection along with photograph of both outside of sample and photo of all the inner contents of sample must be included .v)satisfactory performance report of item from preferably railways or govt. institute.visco-elastic coating substance for phaco-emulsification : specifications: 4% chondroitin sulphate and 3% sodium hyaluronate in the ratio of 1:3. ii) to be supplied in a pre-filled syringe 0.75ml or more in a sterile pack. iii) sterile 27 gauge cannula to be included along with the pack. iv) sample of item must be included for inspection along with photograph of both outside of sample and photo of all the inner contents of sample must be included .v)satisfactory performance report of item from preferably railways or govt. institute.,visco-elastic coating substance for phaco-emulsification : specifications: 4% chondroitin sulp hate and 3% sodium hyaluronate in the ratio of 1:3. ii) to be supplied in a pre-filled syringe 0.75ml or more in a sterile pack. iii) sterile 27 gauge cannula to be included along with the pack. iv) sample of item must b e included for inspection along with photograph of both outside of sample and photo of all the inner content s of sample must be included .v)satisfactory performance report of item from preferably railways or govt. i nstitute. [ warranty period: 30 months after the date of delivery ] ]