supply of two types of rotorstwo types of rotors,complete rotor (scheme-ii design) using zirconium copper punched designe d resistance ring mechanically interlocked with end ring for 3phase traction motor t ype 6fra 6068 of elect. loco, to rdso drg. no. skel-4882, alt.0, to spec. no. rdso/2008/el/ spec/0061, rev.2 & str. no. clw/2012/3ph tm rotor/str/0003, rev.-1 [ warranty period: 30 mo nths after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] , shaft mounted zr cu stamping type resistance ring design of rotor (schem e-i) for tm type 6fra 6068 for wag-9/wap-7 loco to drg no. skel- 4881, alt.0 , to spec. rds o/2007/el/ spec/ 0060, rev.0 & str no: clw/2012/3ph tm rotor/ str/0003, rev.1 [ warranty pe riod: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]