The crowbar can be used with a variety of tools to carry heavy objects such as large machines. It must be used with a jack to repair the machine. It can be used together with the trolley to carry large machinery. The crowbar is made of carbon steel and alloy steel. For the crowbar, there is only one fulcrum inflection point in the lever principle, so it can only be supported on one plane. In this mechanism, the input and output of power are limited to the only plane perpendicular to the fulcrum plane. Lifting weight: 3tons,5tons. just tell me your needs, and contact us.