On the morning of Nov 9, 2018, Lin Bozhi, director of Mianyang Huike Optoelectronic Technology Co., Ltd. and Wang Ke, Ministry of Industry and Security, went to Sichuan Province Ecological Environment Department and Sichuan Environmental Engineering Evaluation Center respectively to deliver "Honest and Effective Service", "Environmental Protection Guard Practical and Efficient" to Biological Engineering Institute & Environmental Protection Research Institute of EDRI.