... over 16years experienced R&D and advanced producing machine.Factory large lithium-ion battery 12v 6ah Coming ... ,light weightSystematic quality control:SAP(ERP) system typical application in Shenzhen,Teamcenter,Advanced testing machine,Full inspection shipment, ... instruments and meters2.Computer, uninterrupted power source (UPS)3.Power transmission and transformer station, switch-control, and accident ...