Tenders for Supply of Set Of Crew Friendly Type Loco Air Pressure Gauge 1 4 Inch Duplex Air Pressure Gauge Self Illuminated With Led For Mr-Fp To Clws Drg No: 1209-18- 306-223, Qty: 02No/Set. 2 4 Inch Duplex Air Pressure Gauge Self Illuminated With Led For Bcl- Bc2 To Clws Drg. No: 1209-18-306-224, Qty: 02No/Set. 3 4 Inch Single Air Pressure Gauge Self Illuminated With Led For Bp To Clws Drg. No: 1209-18-306-225, Qty: 02No/Set.