Electromagnet
Peb yog cov kws tshaj lij electromagnet tuam ntxhab thiab cov muag khoom hauv Suav teb, muab cov khoom lag luam zoo nrog tus nqi sib tw. Peb sov siab txais tos koj mus yuav customized electromagnet ua nyob rau hauv Suav teb nov los ntawm peb lub hoobkas. Tiv tauj peb rau kev hais lus.