The full name of SKF is "Svenska Kullager Fabriken", which is transliterated as "SKF" in Chinese; SKF Group is headquartered in Gothenburg, Sweden and is a leader in bearing technology and manufacturing. Sven Wingquist invented double row automatic centering ball bearings in 1905 and subsequently founded Svenska Kullargerfabriken Swedish Ball Bearing Manufacturing Company, abbreviated as SKF, in 1907, continuously developing and serving the world. SKF is the leader in the world's rolling bearing industry, with a global presence and operations in 130 countries. It produces over 500 million bearings annually and has a sales network spanning the globe. In addition, SKF Group continues to be committed to research and development in the bearing industry, with an average of one new patent appearing every two days. SKF Group is also the first bearing company to pass ISO14001 environmental certification, which covers more than 60 manufacturing units in 17 countries. SKF maintains a leading position in the global bearing industry while tirelessly developing technology, products, and services in multiple fields over the years. It has developed into a truly supply solution led bearing enterprise, creating greater value for users.