supply of set of metalic pipe for loco main transformer as per clw specn. no. clw/es/3/0253, al t-s or latest in three phase locos. each set consisting of :- (1) pipe-a - 01 no. (2) pipe-b - 01 no. (3) pip e-b1 - 01 no. (4) pipe-c - 01 no. (5) pipe-d - 01 no. (6) pipe-f - 01 no. (7) pipe-g - 01 no. [ 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 ] ]