Hebei Xingyu Chemical Co.,Ltd.
BASIC RED 1
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BASIC RED 1:1
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BASIC VIOLET 11:1
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Optical Brightner OB
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Optical Brightener OB-1
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Optical Brightener FP
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Optical Brightener KCB
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Optical Brightener KSN
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Optical Brightening Agent EBF
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Optical Brightner ER-I
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Optical Brightner ER-II
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Optical brightener ER-Ⅲ(FBA 199:2)
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Fluorescent Brightener Er-Iii
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