Handi company, a scientific and technical company that has developed and developed new patented products such as automobiles, supermarkets, etc., has developed a successful set of branded products: magnetic oil filters (also known as magnetizers) to protect engine oils, car parasols, car chair side bags, car sun curtains, car art floors, chair rigid pads, hard labels to be separated from immediate alarms. Monument no.: zl. 7. It is widely used on oil filters such as cars, ships, aircraft, engineering machinery, etc. The product is made of magnetic steel, which is currently highly magnetic in the world, imported raw materials, and uses techniques such as magnetic flux amplifiers and focused magnetic fields, which have the characteristics of one-way magneticity, high temperature resistance and permanent magneticity. Use can be used to absorb metal particles in machine oil filters in a timely manner, thereby reducing engine wear and saving. The product has been tested by the internal f...