Nta: Siv hydraulic system thiab hluav taws xob tshuab tswj rau servo stretching. Nws yog tus nqi siab piv tshuab uas tau tsim los ntawm cov neeg siv khoom lag luam xav tau.Lub khob hydraulic ua tshuab xaj los ntawm UAE cov neeg siv khoom tau ua tiav tiav ob peb hnub dhau los.
