China's largest photoelectric beauty instrument manufacturers are called?

As far as I know at present China's relatively large photoelectric beauty instrument manufacturers are: Beijing Hongqiang beauty equipment instrument factory, Guangzhou Mei Yi Science and Technology Company Limited, there are also Guangzhou Tailai Science and Technology Company Limited, before the production of these products in Beijing has the advantage, now Beijing check strict also in the rectification, photoelectric beauty instrument are basically in Guangzhou production, large and small factories produce instruments from the surface is difficult to see the difference Because the procurement of the chassis are similar, the main difference is that the internal electrical components of the product are different.