Pulogalamu ya MES R&D luso Kuthekera Kwamakonda Kutha Kusungirako The Workshop of Injection Molding Msonkhano wa Metal Machining 1.Helium Leak Test 2.Kuthira thovu 3. Kusonkhana 4.Kuyendera Thupi 5.Vacuuming ndi Refrigerant Kudzaza 6.Kuyesa kwamagetsi 7.Kuyesa Kwantchito 8.Packaging and Loading Njira ya Semi Yamalizidwa Njira Yopangira Ma Air Conditioners Enthalpy Difference Test Mayeso a Vibration