Zhejiang Shuangyuan Technology Co., Ltd. engages in research and development, manufacture, and sale of density measurement and control system and appearance defect detection system. Its products are used in new energy, metal foil materials, medical and sanitary materials, films, non-woven fabrics, and industries. The company was founded by Lin Zheng and Mei Qin Hu on March 21, 2006 and is headquartered in Hangzhou, China.