Yes According to the enterprise's inquiry, Changzhou Sheng Rui Electronics Factory was established in 1993, and it is one of the largest manufacturers of acoustic components in the world. Is a leading enterprise with a set of independent core technologies and equipment such as micro-acoustics, optics, electromagnetic transmission, RF antenna, etc., with more than 25,000 employees and more than 30 subsidiaries in China. The standard of "big factory" is that large enterprises have more than 0/000 employees/kloc or an operating income of more than 400 million yuan. Changzhou Sheng Rui Electronics Factory has reached this standard, so it is a big factory.