Dongguan SUM Electronics Technology CO.,LTD. is a company with a new energy (polymer lithium batteries,Website:http://www.sum-battery.com, lithium iron phosphate batteries, lithium battery energy storage systems, etc.) series of independent research and development, full manufacturing, application sales business areas of fine diversified enterprises; long-term Deep in the battery industry, brought together a group of decades of senior industry team management and practical technical elite, in the battery application market, there are many types of accumulation, precipitation and sublimation...