Main:Qingdao Conele Grouplocated in the beautiful coast city-Qingdao, is the first enterprise entering the field of manufacture of fine stone concrete pumps and shotcrete pumps. Our company, having a
Main:1.Our HistoryHistory-14-Year ExperienceIn 2002, OptimumNano Energy Co., Ltd started the battery business in Shenzhen. In 2006, OptimumNano began to focus on the production, Engineering, researching an
Main:Introduction Established in Dec.12, 2007,Shaanxi XD HI-TECH Medium-low Voltage Apparatus Co., Ltdmainly provides 0.4-55kV switchgears including ci