1.Mitundu Yathunthu Yazinthu
Zipinda zonse za arc zomangira ma circuit ting'onoting'ono, zomangira ma circuit breaker, earth leakage circuit breaker ndi air circuit breaker.
2.Kuwongolera Kwabwino
Timawongolera khalidweli pofufuza zambiri.Choyamba, tili ndi kuyendera kwa zopangira zomwe zikubwera.Kenako gwiritsani ntchito kuwunika kwa rivet ndi masitampu.Pomaliza pali kuwerengetsa komaliza komwe kumaphatikizapo kuyeza kwa makulidwe, kuyezetsa kolimba ndi kuwunika kwa malaya.
3.Sikelo Yathu
Nyumba zathu zili ndi 7200 lalikulu mita.Tili ndi ndodo 150, makina 20 a nkhonya, makina 50 a makina opangira ma riveting, ma seti 80 a makina owotcherera mfundo ndi zida 10 za zida zamagetsi.