Labor saving wrench is a newly designed wheel wrench for easy loosen truck tires or car tires by using less labour to reach a sufficient output torque, especially is suitable for tightening and dismantling large diameter bolts and nuts.
|We're known as one of the most professional labor saving wrench manufacturers and suppliers in China. Our factory supply the best labor saving wrench made in china with competitive price and high quality. Welcome to contact us for wholesale service.|
In principle, the hydraulic jack is based on Pascal principle, that is, the pressure of the liquid is the same everywhere, so in a balanced system, the pressure exerted on the smaller piston is relatively small, and the pressure exerted on the larger piston is also relatively large, which can keep t