Tangchaoshengshi is involved in producing toughest cases in the world. In fact, we make it among the users from all over the world, including professional photographers, divers, geologists, doctors and others. Any place which needs protection for equipment, there\\\'s Tangchaoshengshi. We also have a good reputation in aero transportation, electrics and communication. Technology & Certification As one of the top brands in equipment case in China, Tangchaoshengshi has special understanding and technology. Each one of the cases is tested strictly from raw material to finished product. That is the reason why we can make the tough, watertight, anti-seismic and reliable cases. All the cases have been tested by authorized institutions. TCSS is expert in manufacturing Security Protective case.The case are widely used in all kinds of industrial production, petrochemical industry, electricity,electronics, nuclear power, communications, aerospace,Fire control, public security, army, government, instruments and meters, scientific research, exploration, medical, photographic camera, logistics transport, Emergency rescue and outdoor sports and other industries.