High-inganci bel mai gefe guda biyu, ya dace da watsawar tangential mai sauri da watsa wutar lantarki a cikin masana'antar yadi, kamar injunan juzu'i, injin jujjuya, injin zane, injin lankwasawa, kuma sau da yawa suna yin kati, injin roving. , Injin yin alama, injinan zane, injin takarda da sauran masana'antar bel ɗin wutar lantarki.