001 / etender / ngp / 2021 supply, complete installation and commissioning of devices, equipments, instrument, machineries, tools etc. for physics laboratories, automobile and mechanical engineering laboratories and workshops at nalhati goverment polytechnic , all geared centre lathe , universal milling machine , radial drilling machine , bench grinder , pedestal grinder , planer machine , slotting machine , mig welding machine , tigwelding machine , oxygen cylinder , tools ( toolbox ) and special tools ( bosch full set ) , working model of lubrication system , safety precaution charts for automobile engineering lab , recirculating ball and worm & roller type steering gear box , mpfi assembly , working model of air braking system , working model of mc. pherson strut and wishbone arm suspension system , working model of abs system , working model of telescopic type shock absorber , automobile electrical system layout with all accessories and battery , crank shaft and cam shaft model , traffic signal and symbol charts , cut section of turbocharger , crdi assembly , hydraulic jack ( 1 ) and steel jack stands ( 4 ) , nozzle tester , piston ring compressor , coil spring compressor , valve lifter , oil spray gun , grease gun , automotive electrical panel board , convex mirror: focal length -15cm, diameter-50mm , convex mirror: focal length -10cm, diameter-50mm , concave mirror: focal length -15cm, diameter-50mm , concave mirror: focal length -10cm, diameter-50mm , spherometer: single disc 1 / 100mm , superior , specific gravity bottle: 50ml , digital balance: u.l-600gm, l.c-0.01gm , distilled water: deionised water, 500ml