procurement of consumable spares required for oxygen compressor make didwania , consumables spares required for oxygen compressor (make: didwania) , suction valve assy. 105 cr – 11 , delivery valve assy. 105 cr – 12 , suction valve assy. cr – 13 , delivery valve assy. 105 cr , suction valve assy. 105 r1 / 21 , delivery valve assy. 105 r1 / 22 , oxygen compressor gland packing - 1 st stage , oxygen compressor gland packing - 2 nd stage , oxygen compressor gland packing - 3 rd stage , oxygen compressor gland packing - 4 th stage , teflonoil scraping ring 49047030 , back-up ring(didwania o2 comp) for gland packing assy , blocking nut m 30 x 3.5 - 22002340- o2 compressor , aluminium washer (didwania o2 comp) for gland packing assy , o2 compressor,piston rod,350 mm- 1st stage , o2 compressor,piston rod,230mm- 2nd stage , o2 compressor,piston rod,160mm- 3rd stage , o2 compressor,piston rod,105mm- 4th stage , piston ring (350 mm)-1st stage, o2 compressor , piston ring (230 mm)-2nd stage, o2 compressor , piston ring (160 mm)-3rd stage, o2 compressor , piston ring (105 mm)-4th stage, o2 compressor , guide ring (350mm) for first stage -o2 compressor , guide ring (230mm) for second stage -o2 compressor , guide ring (160mm) for third stage -o2 compressor , guide ring (105mm) for fourth stage -o2 compressor , gudgeon pin - 35322080h - o2 compressor