DSMC series of mechanical hydraulic jack 1: mechanical and hydraulic jacks - thin flat design, the jack can not be applied to other applicable 2: mechanical and hydraulic jacks - light, thin, short, small, operating without work limitations 3: mechanical and hydraulic Jack - the height can be precisely fine-tuned precision of 0.01mm 4: high-strength steel, to improve the life and strength of five: one-piece screw hydraulic mechanism, no additional pump and tubing connections