YTQC Ụdị Drill String Magnet bụ nke mejupụtara ahụ,magnetik isi, nkwụsị nkwụsị, ịghasa, wdg
N'ebe a na-egwupụta ihe na ịkụ azụ, site na mkpọpu mmirimmiri, na ala oghere irighiri ihe ga-adsorbed na magnetik isi nke akuakuzinwo eriri eriri azu magnet n'okpuru mgbasa edinam, na ndị a irighiri ihe ga-alaghachi n'ala ọnụ na akuakuzinwo eriri eriri azu magnetik, n'ihi ya, iji nweta ọrụ nke-egwe ọka ọrụ na ihicha oghere ala n'oge ọ bụla.