Zhejiang ZhengGuang Vacuum Electric Co.,Ltd. is the professional manufacturer that makes passive vacuum device. Company not only have production passive vacuum device need various vacuum equipments, also still possess professional technical people, work advanced , equipment complete, new product development ability the strong speed of R&D rapid. The vacuum switch pipe of glass shell and the porcelain of our major product and with its corresponding vacuum contactor and vacuum circuit breaker, most product test through all types, with ensure the quality of product, product have formed series and specifications complete, sell nation-wide every place, get large user favourable comment deeply. Grasp times business chance, , climb the peak of science and technology is the quality policy of us, offer excellent post sale service and the product of high quality is our promise. Companies locate in scenery beautiful Zhejiang eastern happy clear region, water and land, empty traffic are very convenient , are coastal first open city . zeal welcome social all circles and new, old customer come to patronage!