Ngaphambi kokwenza uphenyo, sicela usinikeze ulwazi olulandelayo ukuze sazi izidingo zakho zangempela ngokucacile:
1.Usayizi
2.Ukubekezelela usayizi
3.Ibanga likaMagnetic(35-N52(M,H,SH,UH,EH,AH))
4.I-Coating(Zn, Ni, Epoxy, njll)
5.Indlela kaMagnetic field (Axial, Radial, Ukuqina, njll.)
6.Ubuningi
7.Uzowusebenzisa kuphi noma kanjani umazibuthe