Product Description (hydraulic cylinder type): 1, lightweight and compact design for small work space 2, paint surface enhanced corrosion resistance 3, dust ring to reduce pollution, to extend the service life of four hydraulic cylinders, portable and easy to carry, no two cylinder plane holes for stationary use 5, with pump CP-700B CP-700-2A ZCB-63A Uses: This is designed and developed in recent years, ultra-thin portable hydraulic jack, ideal for narrow space operations. Widely used in electric power ,, communication, machinery, bridges, steel and other industries. Features: a lightweight ultra-thin design, easy to apply. Single-acting, spring retraction. 2 surface paint, enhanced corrosion resistance. Has a dust ring, reduce pollution, and prolong life. 3 cylinder above has two holes for a fixed jack to use.