Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  N'ihi ya, a na-eji ya eme ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ọ dị mma. Iron na alloys ya na-azaghachi nke ọma na kpo oku na-ekpo ọkụ, n'ihi ọdịdị ferromagnetic ha. Otú ọ dị, a pụrụ ime ka e nwee ebili mmiri na onye ọ bụla na-eduzi, na hysteresis magnetik nwere ike ime na ihe ọ bụla magnetik. A na-eji ikpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ (dịka ọla ndị a wụrụ awụ) na ndị na-ekpo ọkụ na-ekpo ọkụ (dịka plasma gas - lee teknụzụ plasma induction). A na-ejikarị ikpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ. A na-eji ọkụ ọkụ na-ekpo ọkụ (50/60 Hz) na-ekpo ọkụ maka ọtụtụ ngwa ụlọ ọrụ mmepụta ihe dị ala karịa ka a na-achọghị ndị ntụgharị.  Ajụjụ: Olee ihe ndị e nwere ike iji okpomọkụ a na-etinye n'ọkụ mee?
elu hardening, agbaze, brazing na soldering na kpo oku iji dabara