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   Zhuzhou Qingyun Railway Traction Equipment Co., Ltd. is the locomotive parts manufacturer designated by Ministry of Railway, China. It is a modern joint stock enterprise specializing for R&D and manufacturing of locomotive high-voltage electrical and intellingent control product. The products are widely applied in the newly manufactured and existing locomotive of China, and among them:the“vacuum main circuit breaker” is the only product of ethical brands that meet the bidding documents (IEC…

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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6场半全场中奖条件是