上海钻诺工贸有限公司、上海金马高强度紧固件有限公司
Shanghai Junoup Industry & Trade Co., Ltd was founded in 2004, specialized provide the world\'s leading technology of bolt safety fastening solution. The main products include: hydraulic torque wrench, hydraulic bolt tensioner, hydraulic cylinder and Jack, torque tester, laser centering system etc.
The Shanghai Jinma high strength fastener CO.,LTD was founded in 1970, which is a company of steel structure products manufacturing and installing authorized by building metal structure association of china and the specialized company of manufacture standard and non-standard high strength bolts. The Company productivity is 10 million sets of bolts per year.
Website：www.torcup.com.cn