First magnet who found the oldest record is a guide to Chinese Emperor Chi war car so called one of the three great inventions of China! China in the first century BC that is aware of the case of magnet polarization. Warring States era, had used a natural magnet, on a scale of copper coil for divination. The use of the Northern Song Dynasty two ways to create a human magnet, one is red-hot iron needle placed in north-south direction of the tool magnet manufacturers, wholesale, after rapid cooling, the use of the Earth's magnetic field magnetized iron needle; the other is using a magnet friction made of iron needles. "Dream Pool Essays" documented the presence of magnetic declination, found under the influence of the magnetic declination, needle pointing south, a bit more than the real south east. Based on these knowledge tools magnet franchise stores, and the development of scientific applications as a magnet compass. Magnet is just a generic term that generally refers to something magnetic actual ingredients are not necessarily contain iron. Relatively pure metallic state does not have a permanent magnetic iron, only close to the permanent magnet will produce a magnetic induction. General permanent magnet which added other impurity elements (such as carbon) to the magnetic stabilized, but it would be rather difficult to reduce the freedom of electronic conductivity, so when the current through the light bulb lit up. A crisis is emerging. Gluttonous lust for power by the global stimulus, the demand for the best quality magnets are converging an undercurrent torrent. The trouble is, we do not know where did you get so much talent magnet. Suddenly tool magnet, Constantini Fernandez, Lewis, and their colleagues found that their work is unprecedented attention. To create a good magnet is not easy. 19th century classical electromagnetic theory tells us that the charge movement will produce a magnetic field, in turn, it is a natural magnet can drive charge. This finding is enough to make a lot of iron, nature's most common magnetic substance, a core tool magnet motors, generators and transformers such key power technology ultra low-cost, core energy stored in these devices, the mechanical work and the current mutual conversion, until today remains the same. Tools magnet factory outlets | new magnetic Tong Xin | Tools 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.