Astaamaha:
1. Dahaarka heerka sare
2. Iska caabbinta heerkulka sare
3. Hanti koronto oo xooggan
4. Iska caabin xiiran oo wanaagsan
5. Degganaanshiyo kiimiko oo heer sare ah,
6. Iska caabbinta shucaaca wanaagsan,
7. Way fududahay in la dhinto-goynta qaab kasta oo qaabaysan
Codsiyada:
Warshadaha hawada sare -- shaqada dahaarka heerka sare ee diyaaradaha iyo baalasha farsamada hawada
Wax-soo-saarka guddiga PCB -- sida ilaalinta faraha dahabiga ah inta lagu jiro alxanka mowjadda ama dib-u-socodka alxanka
Capacitor iyo Transformer -- sida duubista iyo dahaarka
Matoorada iyo dahaarka transformerka
Warshadaha baabuurta -- ee lagu duubo furayaasha, diaphragms, dareemayaasha kuleyliyaha kursiga ama qaybta socodka baabuurta.