supply of set of nitrile rubber o ring consisting of two itemsset of nitrile rubber o ring consisting of two items,set of nitrile rubber o ring consisting of two items as follows: (i) dia 280 mm x 4 mm cd, qty. -01 no. and (ii) dia 205 mm x 3 mm cd, qty. - 01 no. as per els/tata drg. no. tata/rs/misc/13/1, alt-1. one set consist of 2 item,02 nos. material to be procured from clw approved source to item id 2101221. material - nitrile rubber, test certificate to be given from nth or any other govt. approved test agency along with material. one sample to be got approved before bulk supply of material. [ warranty period: 30 months after the date of delivery ] sr. section engineer(trs) [tm] maharashtra 50.00 set