Weifang Toption Chemical Industry Co., Ltd., yashinzwe mu 2006 ifite imari shingiro ya miliyoni 5, abakozi 150, yeguriwe imiti yangiza ibidukikije; ni uruganda rukora Kalisiyumu Chloride, Barium Chloride, Magnesium Chloride, Sodium Metabisulfite, Sodium Bicarbonate, Sodium Hydrosulfite, Gel Breaker, nibindi.
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