Hangzhou Naizhun Precision Machinery Company Ltd., is a professional comany engaged in hydraulic torque wrench, hydraulic torque wrench pumps, hydraulic tensile, torque multipliers and other hydraulic tools R&D production and leasing, manufacturer, mounting and dismantling focus on large bolt and nuts.

All of our products are up to the international standard ISO9001. We have received a good reputation both from domestic and abroad. Our products have been well sold to more than 30 countries, such as Japan, America, Australia, Italy, and Middle East etc.

If you are interested in any of our products, please feel free to contact us. We are sincerely looking forward to cooperate with you.