INTERNATIONAL PATENT: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY, 昆明理工大学, SHANGDONG SHUANGGANG PISTON CO., LTD, 山东双港活塞股份有限公司 FILES APPLICATION FOR "METHOD FOR DESIGNING PIT ARRAY STRUCTURE ON WALL SURFACE OF COMBUSTION CHAMBER AND COMBUSTION CHAMBER"

GENEVA, May 9 -- KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY (No.727 Jingming South Road, Chenggong DistrictKunming, Yunnan 650000), 昆明理工大学 (中国云南省昆明市呈贡区景明南路727号), SHANGDONG SHUANGGANG PISTON CO., LTD (No.399, Chengdu RoadRizhao, Shandong 262399), 山东双港活塞股份有限公司 (中国山东省日照市成都路399号) filed a patent application (PCT/CN2025/091549) for "METHOD FOR DESIGNING PIT ARRAY STRUCTURE ON WALL SURFACE OF COMBUSTION CHAMBER, AND COMBUSTION CH...