Similarly, the various iron components and tools, including abrasion of iron cultivating machines, by which for centuries farmers cultivate their fields, and from that resulting iron - ferric oxide (rust - somewhat hydrated, but still enough magnetic material).
Vile vile, mbalimbali chuma vipengele na zana, Ikiwa ni pamoja na abrasion ya mashine ya chuma kulima, ambayo ni kwa karne Wakulima Kulima mashamba yao, na Hiyo kusababisha kutoka chuma - ferric oxide (kutu - hidrati kiasi fulani, lakini bado kutosha magnetic nyenzo).