HRD UPS---Global High-end Power Solutions Expert! Your best trustable OEM/ODM power partner! ISO9001-2015,ISO14001 , ISO18001, TLC, CQC, TUV ,CE certified.
★ General Features: 1. Using oxygen recombination technology: maintenance-free 2. PbCaSn alloy for plate grids: less gassing, less self-discharging 3. ...