Mag drive coupling has magnets internal to the pump which is connected to the driving gear. The magnets can be ferrite type, sintered neodymium magnets(higher magnetic strength), and SmCo magnets(with temperature up to 350 Celsius).
Light burned powder is one of the main raw materials currently used for the manufacture of gelatin, such as cementitious materials containing magnesium cement. Light burned powder can react with magnesium chloride to form magnesium oxychloride cement.