1. Jining Keli Optoelectronic Industry Co., Ltd. is located in Building E2 of Laser Research Institute Park, No.46 Haichuan Road, High-tech Zone, Jining City, Shandong Province. It is a company engaged in development and sales, production and sales, technical consulting services and other businesses.
2. Shandong Laien Optoelectronic Technology Co., Ltd. is located in the west of Shanbo Road, High-tech Zone, Jining City, Shandong Province. It is a company engaged in electronic instrument service, optical instrument service and instrument service.