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The nj 209 bearing of China breaks the American bearing monopoly to conquer high-speed rail bearing m
News 1Days Ago (05-11)Breaking the American technology monopoly, China conquering cutting-edge high-speed rail bearings, high-speed rail finally used Chinese axles In recent years, Chinese high-speed rail has been developing rapidly. By the end of 2020, high-speed rail operat... -
The number of unemployed in Japan increased year-on-year for 13 consecutive months Will Affect the Pr
News 41Days Ago (04-01)It is reported that the survey results released by the Ministry of Internal Affairs and Communications of Japan on the 30th showed that Japan’s seasonally adjusted full unemployment rate in February was 2.9%, the same as the previous month, and the numbe... -
The market of early strength plasticizer for concrete in 2021
News 43Days Ago (03-30)The early strength plasticizer for concrete is a synthetic polymer used in the preparation of high strength concrete. They are also known as high range water reducers because their use in wet concrete can reduce the water content in wet concrete mixtures... -
The working principle of early strength plasticizer for concrete
News 44Days Ago (03-29)The working principle of early strength plasticizer for concrete (1) Dispersion: After the cement is mixed with water, due to the hydration of the cement particles, the cement particles form an electric double-layer structure, which makes it form a solva... -
Types and functions of concrete additives including blowing agent
News 47Days Ago (03-26)Concrete additives can be divided into four categories according to their functions: 1, Improve concrete mixing logistics variable performance of admixtures, such as various functions of water reducer. 2, Adjust the concrete setting time, hardening perfo... -
Industry chain of Chemical engineering plastics industry in 2021
News 48Days Ago (03-25)New materials refer to newly developed or developing structural materials with excellent properties and functional materials with special properties. Structural materials mainly use their strength, toughness, hardness, elasticity, and other mechanical pr... -
The application of Glass beads
News 54Days Ago (03-19)Application of Glass beads in Reflective Thermal Insulation Coatings Reflective thermal insulation coating is a coating with high reflectivity by adding Glass beads and other fillers to the coating to reflect sunlight to achieve the purpose of thermal in... -
The properties and use of cr2s3 powder
News 61Days Ago (03-12)What is sulfide? In inorganic chemistry, sulfide refers to a type of compound formed by a metal or non-metal with strong electropositiveness and sulfur. Most metal sulfides can be regarded as salts of hydrosulfuric acid. Since hydrosulfuric acid is a wea...
