久久国产精品99久久久久,日韩中文字幕在线视频,国产+精品,国产精品毛片久久久久久久,精品国产91久久久久久老师,精品自拍第一页,久久在线看

jetech energy has the industry's advanced customized R & D, specialized manufacturing and strong supply chain operation system. The company technology center including electronics, power supply, structure, process, electrochemical and other professional and technical categories of several people, most of them are senior engineers in the lithium industry employed more than 10 years. The company test center including safety laboratory, environmental laboratory, environmental laboratory, laboratory power supply and electrical properties of the laboratory, can independently complete raw / auxiliary materials, spare parts and battery module project testing and certification, detection technology has reached the international standard.