1.Upende wekhwalithi ephezulu, usebenzisa izinga lokushisa eliphezulu, i-asidi eqinile, i-phosphating, i-putty, isifutho nezinye izinqubo zokulwa nokugqwala, ukuze kuqinisekiswe ukuthi umkhiqizo ngamunye ungamelana kangcono nokuguguleka kwemvula.2.Injini eqinile, idizayini engu-180° yokuphahlazeka, amandla aphansi ukusetshenziswa, okumangelengele.3.Ukuvikeleka ekulweni, kuphela ...
Funda kabanzi