1. Madera okhala ndi mvula yambiri, chinyezi chambiri komanso utsi wamchere.
2. Malo ogwirira ntchito ndi chinyezi ndipo pali malo opanda nthunzi.
3.. Kutalika sikupitilira 2000m.
4. Malo ogwirira ntchito amakhala ndi fumbi loyaka monga mchenga ndi fumbi.
5. Malo ogwirira ntchito amakhala ndi mipweya yowononga monga ma acid acid ndi zigawo zofooka.
6. Zofunika ku Petroleum, mankhwala, chakudya, zamankhwala, zankhondo, zopaka ndi malo ena.
7. Gwiritsani ntchito zida zamagetsi kutali kapena mosapita m'mbali mota pafupi ndi mota yoyendetsedwa ndi galimoto yolamulidwa, ndipo sankhani ntchito yamakono yoyendetsedwa kudzera mu chida chamagetsi komanso kuwala.