supply of set of rubber items for pantograph isolating cockset of rubber items for pantograph isolating cock,set of rubber items for pantograph isolating cock [kaba key] for pneumatic panel of wa g-9/wap-7 loco provided in the e-70 brake system consisting of following items: [1] valve sent, qty./s et- 01, material specn. silicon rubber, pce ref- 10. [2] o ring, qty./set- 01, material specn. silicon ru bber, pce ref- 16. [3] o ring, qty./set- 01, material specn. silicon rubber, pce ref- 18. [4] key way ri ng, qty./set- 01, material specn. silicon rubber, pce ref- 19. specification: clw spec. no. clw/es/sk- 3/0049 or latest. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]