air driven hydraulic jack

jack ... adjustment jack 调节千斤顶 air-driven hydraulic jack 风动液压千斤顶 ancillary jack 业务联络线塞孔; 辅助塞孔 ...

... air-driven hammer drill 风动气锤钻 air-driven hydraulic jack 风动油压千斤顶 be driven back on 不得已,不得不,只好 ...