Cement: From Invention to Application, Unveiling the Evolution and Future of Building MaterialsCement, an indispensable material in modern construction, traces its roots back to the early 19th century. In 1824, Joseph Aspdin, an Englishman, invented cement by mixing limestone and clay and burning them at high temperatures...

Source: Heilongjiang DailyOn October 14th, the 2023 Annual Conference of the Chinese Society of Mechanical Engineering was held in Dalian, where the 2023 Mechanical Industry Science and Technology Award ceremony was held. The "Shape Performance Application Integrated Design and Control Technology of Cutting Tools for Aerospace Energy Equipment and Heavy Parts Processing" project, presided over by Professor Liu Xianli from the School of Mechanical Power Engineering at Harbin Institute of Technology, won the first prize for technological invention...

Jin Bin Hai News(Reporter Zhang Boyan, Correspondent Zhang Yaju, Shaodong, Jiang Chang) Recently, the deep-water subsea oil production tree feeding device - the deep-water located pipe string, independently designed by the new area enterprise CNOOC Development Engineering Technology Company, has obtained two national invention patents.These two patents are "an underwater tubing hanger assisted detachment mechanism and operation method" and "a sealed shear ball valve for deep water"...