WTAU is committed to researching, developing and producing safety devices for crane cranes , automatic monitoring control systems , etc. WTAU puts the principle make sure the lifting equipments are operated safely and reliably as our duty and takes the high-tech as the core. WTAU has awarded many patents and major achievements of science and technology. The Torque Limiter, Weight Limiter, Anemometer ,etc. which are researched independently are widely used in electrical, chemical, steel, metallurgy, construction, ports, shipping and other industries.