supply of set of locking plate , set of locking plate and keys for pantograph type am-12 or similar (item to proc ured from clw approved sources only).comprising of 3 items 8 nos. as per sketch no.bsl.elw.sk.n o.4006 alt-2 or latest (1) adjustable lock nut, ccpl ord ref. no. c01350 or gsec part no. gse c/panto/021 or cre ord ref no 013079, qty=1 (2) lock plate, ccpl ord ref no. c01230, or gsec p art no. gsec/panto/082 or cre ord ref no 0103080. qty= 02 nos. (3) key, ccpl ord ref no. c018 190, or gsec part no. gsec/panto or cre ord ref no. 0103161, qty=02 nos. [ warranty period: 3 0 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]