... Cycle usage , High Capacity Applications UPSEmergency power sources and lighting (for hospitals, banks, insurance, taxation, entertainment ... rubber ring had no leakage troubleSpecial high temperature and high humidity curing process, 4BS positive active massAccurate acid ... (flame-retardant ABS, optional). Certificates, Standards and LicensesCE certificateChinese Standard JB/T6457.2-1992IEC Standard ...