WREN was estblished in 1992, and we are professional manufactures of hydraulic equipments. Now,wu 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 zhe world,"made in WREN" means high quality, and that make us to be the biggest hydraulic torque wrench factory. At same time, we makeelectric pumps and air pumps by ourselves, that is unique on the world. In many developed country, always have our distributors. Our company has 18,000 square meters factory and office in Hang Zhou, which is 160km aeay form ShangHai, and have more than 260 staffs. Our products are well used in stell industry, shipbuliding, power station, petroleum industry,chemical industry, railway, rubbrt industry and other engineering industry. Now we alreaday have distributors in American, Japan, Germany, Australia and Russia. We have OEM customer at many other countries in the world. WREN is worth to reliable!