Kulemeletsa
Kutchula /
Phukusi
Kufunsa
Instional Injini ya D49, Insel-Stroke Inslesel idapangidwa bwino ndi Soviet Union mu 1966, ikugwira ntchito yopanga njanji ya ku China. Zogulitsa zathu D49 zomwe zili patsamba lofotative zimaphatikizapo msonkhano wa piston, Crankshaft etc.