supply of set of spares for ac earthing switch , set of spares for ac earthing switch(bhel rake) 1. contact spring pce part no: - 25400d 28 qty:-04 nos/per set 2. keys a blue pce part no: - 25400d67 qty:-01 nos/per set 3. key b yellow p ce part no: - 25400d68 qty:-02 nos/per set 4. rubber gasket (seal) pce part no: - 25082d32 qty:-0 1 nos/per set 5. blade/arm straight pce part no: - 25400210d11 qty:-02 nos/per set. make - patra an d chanda manufacturing & engg. [india] pvt. ltd [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]