9. Q: magnet can be used in the water it? A: Depending on the material, not every magnet can be used in the water. SmCo and ferrite can be used normally in the water, NdFeB and Alnico not be used in the water. 10. Q: How adsorption measured? A: The suction force is determined according to the following method: the magnet side adsorbed on a piece of iron, the other side to stick together with a 5mm thick piece of iron on the rubber and the tension, the moment when the magnet and the iron plates Rally is the suction force of the magnet. 11. Q: buy back the magnet can rework it? A: Because the mall is already an existing magnet magnetized products, no longer suitable for mechanical processing, such as the need special products please sent me the drawings, durable massive rectangular magnet, we can be customized according to specific customer requirements. 2 NdFeB magnets which application? NdFeB permanent magnet with its excellent performance, abundant raw material and reasonable prices are to rapid development and wide application. The main applications in micro-motors, permanent magnet instrument, electronic industry, automobile, petrochemical, nuclear magnetic resonance devices, sensors, audio equipment, magnetic suspension system, magnetic transmission machine and magnetic therapy devices. 3 ferrite magnetic analog low performance and the massive rectangular magnet market, the lowest price, good temperature characteristics, corrosion resistance, good cost performance NdFeB highest performance, price, good strength, high temperature and corrosion samarium cobalt high performance, the highest price, crisp, excellent temperature characteristics, low corrosion resistant aluminum, nickel and cobalt in performance and price, the massive rectangular magnet of low temperature characteristics excellent corrosion resistance, poor interference SmCo, ferrite, neodymium iron-boron available method for manufacturing sintered and bonded sintered magnetic high, molding is poor, massive rectangular magnets, bonded magnets good shape, much lower performance. Casting and sintering AlNiCo available manufacturing methods, high performance cast magnet, good moldability is poor, low sintered magnet, good moldability. Quality assurance massive rectangular magnets, magnetic Xin Tong new, massive rectangular magnet provided by the Dongguan City, Tong Xin magnetic Limited. Dongguan City, Tong Xin magnetic Limited (www.dgxtxmagnet.com/) Dongguan, Guangdong, magnetic leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. New Tong Xin magnetic leadership with the staff warmly welcome all inquiries to discuss, with new magnetic Xin Tong better future.