... ,20T2) Certificate: CE,GS,ISO3) Min. height: 68-108mm4) Max Lifting: height:1075-1350mm5) Color Choice: yellow green blue red gray6 ... the prop timber in mine, tunnel, bridge, concrete buildup, etc.4) To raise the lower positioned object before it is lifted ... best lift tools used in repairing and supporting, etc. The lifting or lowering speed is controllable. Moreover, it overcomes the shortcoming ...