... .6 production lines ,8000MT/ month . 3.Only 30KM from our factory to Tianjin Report . Xing Kai Chemic Co., Ltd was established ... of TOYOTA for 3 years .Main use : the manufacture of chemicals ,paper , aluminum smelting ,refining tungsten ,artificial silk , rayon and soap ... .0.005% Max.0.001% Max Caustic Soda Solid 99% Factory -- TOYOTA partner