supply and installation of various laboratory equipments and ac , model (constant mesh gear box – cut section working model) , model (cut model of ci engine (diesel) , model (cut model of si engine 2 stroke (petrol) , model (cut model of si engine 4 stroke (petrol) , model (cut model of tractor) , model (differential assembly with final drive – cut section working model) , model (display model of disk plough , model (display model of indigenous plough , model (display model of mb plough , model (display models of all types of harrows , model (friction clutch (diaphragm type) working model , model (hydraulic brake system working model , model (models of different types of threshing drums , model (sliding mesh gear box – cut section working model , model (steering system (rack & pinion type) working model , model (working model of mower) , model (working model of seed drill) , model (working model of vertical conveyer reaper)