GENEVA, March 23 -- CHANGDE SANY MACHINERY CO., LTD. (Group 2, Chongde Neighborhood Committee, Deshan Town, Economic and Technological Development ZoneChangde, Hunan 415001), 常德市三一机械有限公司 (中国湖南省常德市常德经济技术开发区德山镇崇德居委会二组) filed a patent application (PCT/CN2024/079009) for "SYSTEM AND METHOD FOR CONTROLLING DEGREE OF OPENING OF DISCHARGE DOOR OF MAIN MIXING MACHINE, AND ELECTRONIC DEVICE, STORAGE MEDIUM AND MIXING PLANT" on Feb 28, 2024. With publication no. WO/2025/055269, the details...