Recently, Shijiazhuang Iron & Steel Co., Ltd. has successfully developed new steel grades for the production of wheel bearings for high-end customers. The main function of the hub bearing is to bear the weight and provide precise guidance for the rotation of the hub. It bears both axial and radial loads and is a very important part of the car. The successfully developed steel grades have higher requirements for oxygen content and titanium content than conventional hub bearing steels. In the early stages of development, the technical department communicated with the customers in full. According to the requirements, the developers formulated targeted process routes and technological measures. The steel mills and rolling mills strictly implemented the technical agreements and measures. After inspection, the technical specifications and performance of the steel are all in line with customer requirements. The car purifier is also called a car purifier or a car Air Purifier, which usually consists of a high-voltage generating circuit negative ion generator, a micro fan, an air filter and other systems. Its working principle is as follows: the micro-fan (also known as ventilator) in the machine circulates the air in the car, and the polluted air passes through the PM2.5 filter and activated carbon filter in the machine to filter or adsorb various pollutants, and then After the negative ion generator installed at the air outlet (the high voltage in the negative ion generator generates DC negative high voltage during operation), the air is continuously ionized to generate a large number of negative ions, which are sent out by the micro fan to form an air flow of negative ions to achieve the purpose of cleaning and purifying the air. Car Air Purifier,Air Purifier Setting,Vehicle Air Purifier,Carbon Filter Car Air Purifier Guangxi Nanning King Green Smart Co., Ltd. , https://www.smartliferobot.com