supply of compressor, 2 ton capacity suitable for all makes, for the use of cab ac of wag9hc locos, model no. zr28k3e-tfd-522. make: emerson or similar. note: (1) test certificate should be provided by firm along with the material. (2) the firms with past performance of the tendered/same items subject to submission of proof of documents such as pos/r note are only eligible.compressor, 2 ton capacity suitable for all makes, for the use of cab ac of wag9hc locos, model no. zr28k3e-tfd-522. make: emerson or similar. note: (1) test certificate should be provided by firm along with the material. (2) the firms with past performance of the tendered/same items subject to submission of proof of documents such as pos/r note are only eligible.,compressor, 2 ton capacity suitable for all makes, for the use of cab ac of wag9hc locos, m odel no. zr28k3e-tfd-522. make: emerson or similar. note: (1) test certificate should be provided by firm along with the material. (2) the firms with past performance of the tendered/same items subject to submis sion of proof of documents such as pos/r note are only eligible. [ warranty period: 30 months after the d ate of delivery ] ]