supply of fixing of above emu/memu halt boards in psc sleepers & triangular box type retro-reflective emu/memu halt sign boardsfixing of above emu/memu halt boards in psc sleepers & triangular box type retro-reflective emu/memu halt sign boards,fixing of above emu/memu halt boards in psc sleepers in track which includes drilling of re quired holes in sleepers in situ of 8 mm dia with self tapping screws and other required hardware, including tools, plants, material, manpower etc. [ warranty period: 12 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , manufacturing fabrication and supply of triangular box type retro-reflective emu/memu halt sign boards as shown in the attached drawing made up of thermoset plastic toughened mounding composit e sheets of 3mm ( +/- 0.25 mm) grade (encapsulate lence type) sheeting of 3 m in yellow and black colour i ncluding subject matters, message , symbols, borders, fixed additionally with 4 rivets on two visible sides of triangular box, pasted on substrate by suitable adhesive material, to be drilled with 4 nos of 8 mm dia hole at bottom plate as given in the drawing of size 810 x 168 x 150 mm for bb division. [ warranty period: 1 2 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]