procurement of equipment, instrument, machineries, tools etc. related to laboratories and workshops of mechanical engineering, food orocessing technology and civil engineering of diamond harbour govt polytechnic supply installation of equipment for different laboratory , cut-section model of bourdon tube pressure gauge , gas forged furnace , set up for determination of thermal conductivity of solid metallic rod , cut section model of shell and tube type heat exchanger , cut section model of plate type heat exchanger , reciprocating air compressor test rig , cut section working model of two stroke ic engine , cut section working model of four stroke ic engine , working model of water cooling system of actual four-wheeler ambassador or equivalent engine , working model of lubrication system of actual four-wheeler ambassador or equivalent engine , four stroke four cylinder petrol engine test rig , electricneedleconcrete vibrator machine , butter churner , cream separator , ice cream churner , dough sheeter , freeze drier , hammer mill (laboratory model) , shell and tube heat exchanger horizontal , parallel flow/ counter current parallel flow double pipe heat exchanger , splitting tensile testing machine for paver block with automatic pace rate control