Kodi mtengo wamtengo wa billet Kutentha kotentha kuphatikiza?

Pali zinthu zambiri zomwe zikuphatikizidwa pamitengo yayikulu, monga

1. Mapangidwe amawononga zambiri;

2. Potengera zida, chimango chokhwima;

3. Potengera luso, zida zimapangidwa mwaluso ndikuyeretsedwa;

4. Pazipangizo zamagetsi, zida zamagetsi zamagetsi;

5. Ponena za kulondola, kutentha kotsekedwa kotsekemera, kutentha kwambiri;

6. Kutalika kwa moyo kumakhala koipa kangapo, ndipo kutalika kwa moyo kumatha kufikira zaka zopitilira khumi;

7. Potengera kukonza, kulephera kocheperako komanso mtengo wotsika wokonza;