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 development", dedicated to the wind power, metallurgy, petrochemical and other fields. The company has passed the national ISO9001-2000 quality management system certification, and can operate in strict accordance with the quality management system standards. Since its establishment, the company has always implemented the purpose of "quality first, service first", so that the company's products have been recognized by customers at home and abroad.