About Us

Hangzhou Naizhun Precision Machinery is a professional manufacturer engaged in the research and development, production, and leasing of hydraulic tools such as wind power hydraulic wrenches, hydraulic torque wrench specialized pumps, hydraulic stretchers, torque multipliers, etc., focusing on the tightening 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 as the foundation, and development through service", and wholeheartedly serve the fields of wind power, metallurgy, petrochemical, etc. The company has passed the national ISO9001-2000 quality management system certification and can operate strictly according to the quality management system standards. Since its establishment, the company has always implemented the principle of "quality first, service first", making its products recognized by a large number of domestic and foreign customers.

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Quality first, service first