Tension technology limited was founded in 2005, located in Dong Guan City of Gang Dong Province in China. As new high technology enterprises, we focus on design, manufacturing and sales high-technology tension device, torque measurement and control instruments. Such as: hysteresis brake, hysteresis clutches, tension controller series, etc. We are only one manufacture supply fully range of magnetic hysteresis brakes in china and all products have independent intellectual property rights