VFD tshuab ziab khaub ncaws yog ZG vibrating kua txaj tshuab ziab khaub ncaws, nws yog kab rov tav hom tshuab ziab khaub ncaws.Lub tshuab ziab khaub ncaws VFD tuaj yeem ua haujlwm tsis tu ncua, haum rau loj muaj peev xwm ntau lawm.Lub ziab kub yog adjustable, cov neeg tuaj yeem teem caij kom qhuav zoo raws li lawv cov khoom yam ntxwv.
