WREN was estblished in 1992, and we are professional manufactures of hydraulic equipments. Now, we manufacture hydraulic torque wrenches, torque wrench pumps, hydraulic cylinders, hydraulic hand pumps, herculean hydraulic pullers, electric pumps, air pumps, hydraulic bolt/nut tensioners and many other hydraulic tools. In the world, "made in WREN" means high quality, and that make us to be the biggest hydraulic torque wrench factory. At same time, we make electric pumps and air pumps by ourselves, that is unique on the world. In many developed country, always have our distributors.
The LOW series is a professional-grade hollow hydraulic torque wrench that WREN mainly puts into the international market. Compared to driven hydraulic torque wrenches, hollow hydraulic torque wrenches act directly on the nut and are inherently thin and lightweight, making them ideal for working in tight spaces. LOW series hollow wrenches can be changed and reducers can be installed to adapt to different working conditions, and it covers all bolts from S19~S175. WREN brand provides global after-sales service, has a complete supporting supply capacity, and has passed TUV Rheinland certification and EU CE certification
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