bids are invited for hemispherical sectional models of screw threads , hemispherical sectional models of screw threads nuts , standard bolt , bolts of four types , foundation bolts , foundation bolts with nomenclature , locking arrangement of bolts , rivetted joints - wooden , screw jack apparatus with weights , bush bearing , plummer block or pedestal bearing , foot step bearing , flexible coupling , flanged coupling , stuffing box , connecting rod , spark plug , worm and worm wheel -single with weights , worm and worm wheel - double with weights , worm and worm wheel - tripple with weights , wheel and differential axle 30 cm with weight , winch crab single purchase with weight , winch crab double purchase with weight , universal force table normal , moment of inertia of flywheel - 25 cm with weights , parallel forces apparatus dial type 10 kg. balance , simply suported beam apparatus with weights , friction slide apparatus with weight , slip gauge complete set , vernier calliper , micrometer , sine bar complete set , vernier bevel protector , straight edge , gauge sets -radius, thread , thread plug gauges -set of 5 , plain plug gauges set of 5 , taper plug -gauges set of 5 , thread micrometer , autocollimator , displacementmeasurement trainer module-lvdt , electricalcomparator , pneumatic comparator , bevelprotector , profile projector surface plate 24 inch x 24inch , floating carriage micrometer , magnetic dialindicator with dial gauge , brinell cum rockwell hardnesstester sturdy , fatigue testing machine 200kg , impacttesting machine , torsion testing machine , clutch models , transmission system synchro-mesh gear box actual cutsection , front drive line with differential gear assembly , rear drive line with differential gear assembly , 4 stroke 1cylinder diesel engine - motor driven with valve timingattachment , 2 stroke 1 cylinder petrol engine - motordriven actual cut section model , 4 stroke 1 cylinder petrolengine - motor driven actual cut section model , fuelsupply system of a petrol engine - carburator type actualcut section model1 / 46 total quantity : 81