supply of supply, erection, testing and commissioning of hydraulic spring testing machinesupply, erection, testing and commissioning of hydraulic spring testing machine,supply, erection, testing and commissioning of hydraulic spring testing machine for compre ssion testing/deflection testing and cycle testing of helical spring with respective load for all sizes of helica l spring of electric loco bogies of wap-1/ wap-4/wap-5/wap-7 and wag-9 locomotive along with digital lo ad indicator andlength measurement device( digital linear scale c/w read out console) and data retrievabl e and storage unit. as per specification attached. [ warranty period: 30 months after the date of delivery ] ]