Shenyang Tiantong Electric Co., Ltd. waa warshadda ugu weyn uguna awooda badan Shiinaha ee soo saarta hiitarka fin ee transformers. Mashruucan, mitirka pH-ga waxaa inta badan loo isticmaalaa habka galvanizing-kuleelka si loo kormeero qiimaha pH iyo in la hubiyo in qiimaha pH-ku uu yahay agagaarka 4.5-5.5, si loo gaaro dahaadh xasilloon iyo dhejinta zinc oo siman.
