Guangzhou Shangyi Sci-technology Corporation is a comprehensive enterprise specialized in development in duplicator/printer accessories industry.Since 1993, we produced serious of accessory products based on the faithful operation and win-win rules.Shuangyi has own brandsâ??JINGYIN, which got high reputation by clients. Shuangyi is pursuing â?? perfect qualityâ??, which is considered the life of the company. Under the control of International Quality Certificate, the products are strictly managed with scoures materil selection and each process during production.