DFUN tech nga professional substation backup battery manufacturer and supplier mu China, substation backup battery yonna eyise ku mutindo gw’ensi yonna ogw’okukakasa amakolero, era osobola okukakasa ddala omutindo. Bw’oba ​​tosanze bbaatule yo ey’okutereka ssente mu ngeri ey’ekigendererwa mu lukalala lw’ebintu byaffe, osobola n’okututuukirira, tusobola okuwa empeereza ezikoleddwa ku bubwe.