Guozhu group has sophisticated precision testing equipment, German Zeiss three-dimensional detector precision testing to ensure product quality has played an important role. The UK 3D scanner can accurately determine the shape of a sample and assist in the design. Projectors, pressure testing machines, stress measuring machines and other testing equipment, as well as a variety of special testing equipment with intellectual property rights developed by the company itself, plus professional and strict testing technical personnel of Guozhu, ensure to provide accurate and qualified national pearl products to customers.