GENEVA, May 25 -- BINZHOU DONGHAILONG PISTON CO., LTD. (North Factory Building, 300m East Of The Intersection Of Fenghuang 4th Road And Wutong 9th Road, Binbei Street, Bincheng DistrictBinzhou, Shandong 256600), 滨州东海龙活塞有限公司 (中国山东省滨州市滨城区滨北街道凤凰四路与梧桐九路交叉口往东300米路北厂房) filed a patent application (PCT/CN2024/087163) for "HEAT INSULATION PISTON STRUCTURE AND PREPARATION METHOD THEREFOR" on Apr 11, 2024. With publication no. WO/2025/102594,...