supply of the set consist of following items (1) prefill valve for main ram cylinder model : fpv 63 part no:nhchyd0674 of naveen hydro controls or similar (2) drive roller assembly with lifting cylinder the assembly consist of lifting cylinder, roller, shaft, housing,bearings and couplings joint suitable to bolster of hydraulic press. part no.nhcser122 of naveen hydro control or similar (supplier should provide drawings and technical details in case of equivalent makes).the set consist of following items (1) prefill valve for main ram cylinder model : fpv 63 part no:nhchyd0674 of naveen hydro controls or similar (2) drive roller assembly with lifting cylinder the assembly consist of lifting cylinder, roller, shaft, housing,bearings and couplings joint suitable to bolster of hydraulic press. part no.nhcser122 of naveen hydro control or similar (supplier should provide drawings and technical details in case of equivalent makes).,the set consist of following items (1) prefill valve for main ram cylinder model : fpv 63 part no:nhchyd0674 of naveen hydro controls or similar (2) drive roller assembly with lifting cylinder the asse mbly consist of lifting cylinder, roller, shaft, housing,bearings and couplings joint suitable to bolster of hydr aulic press. part no.nhcser122 of naveen hydro control or similar (supplier should provide drawings and t echnical details in case of equivalent makes). [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]