RAMSUN® is already a professional high-end quality switch R&D and manufacturing company. In order to expand the service efficiency and production capacity for customers, the Dongguan factory was established in 2016. After years of development and market tempering, Insun Microelectronics has gradually formed its own company after years of development and market tempering. Core competitiveness. With the two main production bases in Suzhou and Dongguan, it mainly integrates product development, equipment development, mold development, non-standard product customization and manufacturing.