Hangzhou Durable-Precision Mechanism Company Limited is a professional engaged in hydraulic torque wrench,hydraulic torque wrench special pump, hydraulic tensile, torque multipliers and other hydraulic tools R & D,production and leasing of manufacturers, mounting and dismantling focus on large bolts and nuts. Our company is the one than specialize in researching and developing hydraulic capacity, advanced equipment, experienced staff and excellent techniques, We are capable of providing a complete range of products with high quality and competitive price. In addition, all of our products are up to the international standard(ISO 9001). We have received a good reputation both at home and abroad. Our products have been well sold to more than 30countries, such as Japan, America, Australia, Italy, and the middle east. If you are interested in any of our products, please feel free to contact us. We are sincerely looking forward to cooperating with all customers to create an even brighter future.