China Drying Network News Recently, Baotou Dachuan Rare Earth Technology Co., Ltd. adopted high-temperature polymerization technology, using new rare earth materials and quartz as the main raw materials, developed a new type of rare earth composite brake pad, and successfully applied in large-scal
Non-circular gear transmissions have appeared in the 1930s, but non-circular gears have not been widely used for a long time, and there is little information. The main reason is that the design calculation of the non-circular gear pair is complicated, the variety is various, and the shape is compli
China Automotive Network ambulances are listed in the China Ministry of Industry and Information Technology ambulance car announcement all 9 categories 105 manufacturers 93 ambulance brands 1373 ambulance product information, the latest ambulance announcemen