Zibo Vacuum Equipment Plant Co., Ltd. (hereinafter referred to as: Shuangshan vacuum) located in No. 160, Shuangshan Street, Boshan District, Zibo City, Shandong Province, is a integrated professional manufacturer of vacuum technology and engineering with design, production and sales. Chairman of China Vacuum Association. Shandong Vacuum Equipment Engineering Technology Research center, High-tech enterprises, Innovative enterprises of Shandong province.