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What are the types of the 29412 e bearing rollers
News 15Days Ago (05-12)What are the types of t he 29412 e bearing rollers Chu Chenjian, director and executive deputy general manager of Changsheng Bearing, said at this event that in the automobile and motorcycle parts industry, Changsheng Bearing, as a second or third-tier s... -
Types and functions of concrete additives including foamer lightweight concerete
News 62Days 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...
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