hand lifting mast produced by our company, the hand-operated lifter,hand lift, a lifting platform, a lifting support principle is to use the principle of aerodynamics, with air to push the piston, drives the cylinder, realize the up and down motion of the mechanical device. Manual lifting rod, manual lift hand lifter,, manual lifting platform, manual lifting bracket is made of high strengthaluminum alloy manufacture, has the advantages of small volume, light weight,low noise, the advantages of large load, running smoothly. From the ENGcommunication to the mobile wireless base station, monitoring, military andspecial field, have very high application value.