GB1984-2003, IEC62271-100:2001 reliable quality ,competitive price and more optional standard sizes Shaanxi Longxiang Electrical Co., Ltd. Was established in the year of 2002, which is located in Gaoxin 19th, East Development Zone, Baoji city, Shaanxi Province, China. It is a specialized manufacturer to manufacture, sell and agent different vacuum switches as well as their main parts and ...