Chongqing Yongchang Technology Co., Ltd. mainly deals in direct reading spectrometers, hardness testers, non-destructive testing, flaw detectors, endoscopes, microscopes, and industrial endoscopes. Chongqing Yongchang Technology Co., Ltd. is a high-tech enterprise specializing in the trade of physical and chemical testing equipment, the application of testing technology, software development, and the maintenance and repair of optical equipment. After years of hard work by all employees, it has become one of the most influential companies in the physical and chemical testing industry in southern China.

Tel: 0531-87166537. Lingyue Instrument is a manufacturer specializing in the production, manufacturing and sales of torsion testing machines, tension testing machines, spring testing machines and other mechanical testing machines. The main products are: torque testing machines, electronic universal testing machines, spring testing machines, torsion fatigue testing machines, spring torsion testing machines, etc.