惠城环保：20万吨/年混合废塑料资源化综合利用示范项目已顺利完成第三阶段长周期稳定运行测试

Group 1 - The core viewpoint of the article is that Huicheng Environmental Protection has successfully completed the third phase of long-term stable operation testing for its 200,000 tons/year mixed waste plastic resource utilization demonstration project, meeting expected operational goals [2] - The technical upgrade aims to optimize the equipment for better calibration and efficient stable operation, ensuring product quality and higher capacity release [2] - The progress of the technical upgrade is in line with the planned schedule, and the construction of the supporting hydrogenation unit is also advancing as planned [2]