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Hebei Luoxing Tech Co., Ltd.
High Quality 99% Min Dds 4, 4′ -Diaminodiphenylsulfone / 4-Aminophenyl Sulfone CAS 80-08-0
High Quality 99% Min Dds 4, 4′ -Diaminodiphenylsulfone / 4-Aminophenyl Sulfone CAS 80-08-0
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Unit g
Sample Price US $ 6.5
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