＠王良近日，北京建材集团琉璃河水泥厂所属机电维修公司从国家建材局机械标准化技术委员会手中接过了建材机械产品达标证书，使该公司生产的高铬合金铸造磨球获得国家认可，至此，该产品将全面打入国内市场。琉璃河水泥厂所属机电维修公司，为适应企业深化改革的需要，提高对外... @Wang Liang In recent days, the mechanical and electrical maintenance company of the Beijing Liulihe Cement Factory of Beijing Building Materials Group received the certificate of compliance for building materials machinery from the National Machinery Standardization Technical Committee of the China National Building Material Industry Corporation, which enabled the company to produce high-chromium alloy casting balls that were approved by the state. , The product will fully enter the domestic market. The Liulihe Cement Factory belongs to the electromechanical maintenance company, in order to adapt to the needs of deepening the reform of the company, improve the external...