Zinthu zotseguka ndi mtundu wa chinthu chotenthetsera chamagetsi chomwe chimagwira ntchito bwino kwambiri komanso chomwe chimagwiritsidwa ntchito kwambiri pazachuma zambiri zotenthetsera. Zomwe zimagwiritsidwa ntchito kwambiri mumakampani otenthetsera ma duct, zinthu zotseguka zimakhala ndi ma circuit otseguka omwe amatenthetsera mpweya mwachindunji kuchokera ku ma coil okhazikika. Zinthu zotenthetsera zamafakitalezi zimakhala ndi nthawi yotenthetsera mwachangu zomwe zimapangitsa kuti ntchito ikhale yabwino ndipo zapangidwa kuti zisamaliridwe bwino komanso kuti zigwiritsidwe ntchito mosavuta komanso motsika mtengo.

UBWINO
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Kutalika kwambiri - 40 ft kapena kupitirira apo
Zosinthasintha kwambiri
Yokhala ndi bar yothandizira yopitilira yomwe imatsimikizira kulimba koyenera
Moyo wautali wautumiki
Kugawa kutentha kofanana