Supply Of 4" Single Air Pressure Gauge Self Illuminated With Led Arrangement Range 0 To 14 Kg. To Rdso's Drg. No. Skdp-3511 (alt. - 3) And Skdp-3518 (alt. - 2) For Wag7 Locos And Acceptance As Per Rdso's Inspection Plan No. - Mp-tp-14 Of July-2000 (rev. - 0) (amd. No. - 2) Of June-2003.