Shenyang Tiantong Electric Co., Ltd. nu Bushinwa bunini kandi bukomeye bukora imirasire ya finans ya transformateur.Muri uyu mushinga, metero yacu ya pH ikoreshwa cyane mubikorwa bishyushye-bigamije kugenzura agaciro ka pH no kwemeza ko agaciro ka pH kari hafi 4.5-5.5, kugirango tugere ku isahani ihamye kandi neza.
