supply of retro-reflective type caution boardretro-reflective type caution board,retro-reflective type caution board 25 kv (ohe nearby restricted) size:400mmx270mm as p er rdso spec. no. eti/ohe/33a (12/97) rev-8 (latest) as per drawing attached. guarantee certificate of 12 0 months shall be provided as per mentioned specification. [ warranty period: 120 months after the date of delivery ] ] , retro-reflective type warning board [caution live wires] of size: 450 mm x 225mm x 2 mm as per rdso specification no: eti/ohe/33a [12/97] rev - 8 or latest as per drawing attached. guarantee ce rtificate of 120 months shall be provided as per mentioned specification. [ warranty period: 120 months after the date of delivery ] ] , retro-reflective power block working limit board size: 450 x 450 x 2 mm with com plete fitting fasteners as per rdso spec. no. eti/ohe/33a (12/97) rev-8 or latest as per drawing attache d. the material for base plate should be aluminum alloy sheet (is 737-1986) and material for numerals/sym bols/letter should be made of retro-reflective high intensity micro prismatic sheeting (type-iv). guarantee c ertificate of 120 months shall be provided as per mentioned specification [ warranty period: 120 months after the date of delivery ] ] , retro- reflective structural number plates with powder coating of black colour on both side & without retro-reflective vinyl sheet coating on front side, fasteners for number plate mounting and without retro reflective numbers. remaining specification will be follower as per rdso drawing no. eti/ohe/p/7503 or latest version. rdso specification no eti/ohe/33a (12/97), rev-8. size 310 x 340 mm. warranty period 10 years for number plates and vinyl coating. [ warranty period: 120 months after the d ate of delivery ] ]