What about Guo Kechengyuan's environmental technology?

National Science and Technology Chengyuan is intelligent in environmental science and technology, with favorable treatment, wide service range and excellent service team. Chongqing Guo Ke Chengyuan Environmental Technology Co., Ltd. is a mixed-ownership company controlled by Chongqing Institute of Green Intelligent Technology of China Academy of Sciences. The company specializes in environmental testing equipment, and now it has served users in the national scientific research, measurement, analysis and testing industries. The company can provide a learning and research platform for the Chinese Academy of Sciences, and has a perfect living guarantee.