supply of manufacture and supply of high viscosity nylon (hvn) liners for use on sharp curve with 60 kg rail on curve psc sleeper (rdso drg no. t-4183 to t-4186 & t-4170 to t-4173) confirming to rdso 60 kg drg no. t-8699 . irs specification for hvn liner.manufacture and supply of high viscosity nylon (hvn) liners for use on sharp curve with 60 kg rail on curve psc sleeper (rdso drg no. t-4183 to t-4186 & t-4170 to t-4173) confirming to rdso 60 kg drg no. t-8699 . irs specification for hvn liner.,manufacture and supply of high viscosity nylon (hvn) liners for use on sharp curve with 60 kg rail on curve psc sleeper (rdso drg no. t-4183 to t-4186 & t-4170 to t-4173) confirming to rdso 60 kg drg no. t-8699 . irs specification for hvn liner. [ warranty period: 30 months after the date of delive ry ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]