Recently, US President Joe Biden concluded his first visit to the Middle East since taking office. During the visit, Biden said that the United States will be an active partner in the Middle East for a long time, but Middle East leaders have not clea…
Recently, I learned from the University of Science and Technology of China that the team of Professor Zhu Yanwu of the school cooperated with the Shanghai Institutes for Advanced Study of the Chinese Academy of Sciences, Changzhou Sixth Element Mater…
Cobalt/cobalt-mineral powder in fine form. Co. Co. creates a greyish powder. This powder can be easily dispersed in either acidic, or magnetic solutions. Purity>99.5% Pebble size: 20-80nm Cobalt Copulch Cobalt Very rare chemical and physical proper…
There are two general cement-based foaming materials, chemical foaming and physical foaming.…
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