Magnesia refractories (magnesite refractory) magnesia refractories (magnesite refractory) called magnesia raw alumina bricks Which sell well, mainly taken from natural magnesite alumina brick high temperature treatment system Which is the most professional, or self seawater, salt lakes rich in MgO extraction of high-purity raw materials. Refractory plastic construction method using tamping refractory pug has a certain plasticity known as fire-resistant plastic. Refractory plastic are generally made of mud embryoid use, when to use the ram ramming construction will produce plastic deformation without the risk of fragmentation or collapse, can maintain the shape of the deformed after lifting force. In the United States, where the alumina bricks ASTM most professional, with plasticity index detector provides measurement, the deformation index of greater than 15% were to be plastic, less than 15% were for ramming. In China International states: 15% deformation index - between 40% to be plastic. Strictly speaking refractory plastic should be a kind of semi-rigid plastic material wet. When the plasticity index greater than 40%, conformal bad, by ramming motions slump-prone, plasticity index of less than 15%, while prone to fragmentation ramming difficult tamping dense. Which is the most professional high alumina bricks | shangzhuang Refractories (certified) | Guiyang alumina bricks provided by Zhengzhou City shangzhuang Refractories Limited. Zhengzhou City shangzhuang Refractories Co. (www.yntjj.com.cn) (www.yntjj.com.cn) is Zhengzhou, charge, flux leader, over the years, the company is implementing the scientific management, innovation and development, honesty and trustworthiness guidelines, and satisfy customer needs. In shangzhuang refractory leadership with the staff warmly welcome all inquiries negotiations to create shangzhuang Refractories a better future. You can also access (www.yntjj.com.cn/supply_details_45555585.html), for more information about the company.