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After the pce superplasticizer is added to the cement, the sodium aluminate and sodium carbonate in its main components react rapidly with the gypsum in the cement to form sodium sulfate in the alkaline solution, so that the gypsum loses its original…
Recently, covid 19 outbreak spreads in Shanghai, China. There are more than 25,000 new asymptomatic domestic infections every day. China is implementing a dynamic zero-out policy. A leading respiratory expert said the key to COVID-19 prevention and c…
A molybdenum rod with high melting points, high thermal conductivity, and low thermal expansion can be used in the production of high-temperature heating elements, electric vacuum systems, light source parts and electric vacuum pumps. Metal alloy C…
In the absence of new countries to replace China's declining aluminum demand, the era high profit in alumina is expected. Only the complete utilization of red mud (also known as "the worldwide problem"), which is expected to bring the next profit, c…