Professional Vacuum Electrical Apparatus Manufacturer—— Shone VacuumZhejiang Shone Vacuum Electrical Apparatus Co., Ltd. is an integrated corporation gathered R&D,manufacturing and sales. The main products are vacuum interrupters, vacuum circuit breakers, vacuum contactors and other vacuum electrical apparatus products. The company is located in a famous tourism city-- Hangzhou, sincerely welcome your visit. Joining hands in creating a better future together.