Tender For supply of (1) gas charging meter with low pressure (0-250 psi) and high pressure (0-500 psi) indicator suitable for refrigerant r407c. (2) refrigerant charging hose b.p 3000 psi w.p 700 psi. (3) vacuum pump-s ingle stage, high pressure, 1/4 hp, 250ml oil capacity, 57 l/min flow rate, suitable for refrigerant r407c. (4 ) refrigerant 407c suitable for sidwal, intec, kki make roof mounted cab ac fitted in electric locomotives. [ warranty period: 30 months after the date of delivery ]