supply of 1/2 inch isolating cock w/o vent (olp) for wap-7 locos. , 1/2 inch isolating cock w/o vent(olp) for wap-7 locos as per ftrtipl part no. 023018000 or legris part no. 04021321 or kbil part no. c146651. note: one sample should be got approved before effecting bulk supply. note:[ 1] firm shall quote for any one make mentioned in the tendered description along with valid authorization. if vendor offe rs/bids for more than one make or if the firm mentions, as per tender in their bid(s), their offer will be summarily reject ed. [2] one sample should be got approved before effecting bulk supply. [ warranty period: 30 months after the date of delivery ] ]