Permanent Magnet, Neodymium Magnet, SmCo Magnet manufacturer / supplier in China, offering Strong Lab White PTFE Coated Magnetic Stirrer Bars Stirring Magnets, Lab Equipment PTFE Coated Smooth Cylindrical Magnetic Stir Bar Magnet with Hoop, Custom Laboratory White PTFE Coated Smooth Cylindrical Stir Bar Magnet and so on.