Hangzhou naizhun precision machinery is a manufacturer specializing in the R & D, production and leasing of hydraulic tools such as wind power hydraulic wrench, hydraulic torque wrench pump, hydraulic stretcher, torque multiplier, etc., focusing on the fastening and dismantling of large bolts and nuts.  
   The company is located in Yuhang District, Hangzhou City, with complete industrial supporting facilities and convenient transportation. We adhere to the concept of "quality-oriented, service for