supply of set of nitrile rubber o ring consisting of two items, two numbers as follow: - (i) dia 280 mm x 4mm cd. qty - 01 no/set. (ii) dia 205 mm x 3 mm cd. qty - 01 no/set. as per els/tata drawing no: tata/rs/misc/13/1 alt-1. material- nitrile rubber. test certificate to be given from nth or any govt. approved test agency along with the material. note- material to be procured from clw approved source only as per clw item id: 2101221.set of nitrile rubber o ring consisting of two items, two numbers as follow: - (i) dia 280 mm x 4mm cd. qty - 01 no/set. (ii) dia 205 mm x 3 mm cd. qty - 01 no/set. as per els/tata drawing no: tata/rs/misc/13/1 alt-1. material- nitrile rubber. test certificate to be given from nth or any govt. approved test agency along with the material. note- material to be procured from clw approved source only as per clw item id: 2101221.,set of nitrile rubber o ring consisting of two items, two numbers as follow: - (i) dia 280 mm x 4mm cd. qty - 01 no/set. (ii) dia 205 mm x 3 mm cd. qty - 01 no/set. as per els/tata drawing no: tata /rs/misc/13/1 alt-1. material- nitrile rubber. test certificate to be given from nth or any govt. approved te st agency along with the material. note- material to be procured from clw approved source only as per cl w item id: 2101221. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]