Ma riveti omwe amagwiritsidwa ntchito kwambiri: pali mutu wozungulira, mutu wathyathyathya, ma riveti osapanga dzimbiri, ma riveti olimba, ma riveti a mutu wozungulira, ma riveti osawoneka bwino, ma riveti opanda kanthu;
Riveti ya mutu wothira pansi imagwiritsidwa ntchito makamaka poyikira riveti pamalo osalala komanso katundu wochepa.
Riveti yakhungu ndi mtundu wa riveti ya mbali imodzi, koma kugwiritsa ntchito zida zapadera - mfuti yoponyera;
Nthawi yotumizira: Januwale-11-2021
