Mutu wathu gulu lili ku Qingdao, kampani mayi ndi ogwira boma anakhazikitsidwa mu 1951, ndi zapansi kupanga atatu kuphimba kudera la mamita lalikulu 500,000;ili ndi zoposa 20 zazikuluzikulu zamakono Zopangira Zopangira, monga kuponyera, Machining, kuwotcherera, kutentha kutentha ndi kupanga, zida zopangira zoposa 1,200, kuphatikizapo mizere 10 ya mizere yodzigudubuza, ma seti 4 a mizere yopangira lamba;oposa 400 ogwira ntchito zaumisiri ndi luso, kuphatikizapo akatswiri oposa 200 pakati ndi mkulu, mphamvu luso luso, ndi kafukufuku wamphamvu ndi chitukuko, kapangidwe mankhwala ndi mphamvu Kupanga.
