Zhengzhou longfield international co., ltd
Plastic & Rubber: DOP, Polychloroprene Rubber CR244 Dyestuff and paint: Pentaerythritol 95%, Sodium sulfite Anhydrous 96% Leather and textile: Oxalic Acid, Formic Acid, Acetic Acid, Sodium Formate, Caustic Soda Flakes 96%, Sodium Thiosulfate, Sodium Hydr
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Borax decahydrate-
Sodium dithionite 88%
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Sodium fluoroaluminate/ cryolite
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Sodium hydrosulfite 85%
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Sodium hydrosulphite na2s2o4
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Sodium hyposulfite 99%
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