Mechanical Lubricator Suitable For Steam Locomotive With 8 Ports Equivalent To Make: Nathan Model: Dv4 (Or) Make: Multip Ower International Inc. Type 8 Part No.308 (Or) Equivalent To Nathan Model Dv4 Or Multipower International Inc Type 8 Part No 308, Final Product Should Be Tested In Working Loco By Railway Authority In Presence Of The Supplier. Note: For Material Specification, The Firm Has To Submit Nabl Accredi Ted Lab Test Certificate Along With The Material Supply [ Warranty Period: 30 Months After The Date Of Delivery ] ]