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).
Red polishing powder is made by cerium oxide, and lanthanum oxide, and praseodymium oxide, the rare earth elements. The high performance red polishing powder is suitable for various kinds of glass. No sharp edges, fast acting scratch removal. An abrasive
As technical ceramics with superior wear resistance, anti-corrosion, and eco-friendly characteristics, alumina is always used as the material of ceramic grinding burr in the both hand and electric pepper/salt/spice/herb mill or grinder.