"Kunyenga kwa nkhuni" thovu, ndi mtundu watsopano wopangira zinthu zodzikongoletsera. Ili ndi nyonga yapamwamba kwambiri komanso kuuma, njira yosavuta yopanga, yopanga bwino kwambiri komanso mawonekedwe abwino kwambiri.

Makhalidwe ndi awa,

1. Katundu wobwereza bwino wobwereza. Sikuti zimangophuka mawonekedwe ena, komanso kapangidwe kake nkhuni ndi mapangidwe ena, kukhudza bwino.

2. Maonekedwe ndi kumva kuti ali pafupi ndi nkhuni, omwe amatha kudzozedwa, kupaka chokhomedwa, komanso osanja kapena kapangidwe kake.

3. Nkhungu imatha kukhala aluminium kapena chitsulo, ndi silikan rabara, epoxy utomoni kapena utuweli zina, zomwe ndizotsika mtengo komanso kusangalatsa kosavuta.

4. Njira ndizosavuta, mwachangu, kuchita bwino kwambiri.

5. Mphamvu zakuthupi ndi zamakina ndi imodzi mwazipatso zabwino kwambiri zopangidwa ndi polima. Katundu wakuthupi amatha kuwongoleredwa ndikusintha mawonekedwe.