Chinese VersionGold Suppliers > Hangzhou Sunshine Chemicals Co.,Ltd. > 4.4'-Diamine dipheny-2.2'-disulfonic acid
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- Region :Intermediates/Dyestuff intermediates
- Tel : +86-571-88524088
- Fax : +86-571-88524618
- Email :xubojie@aciddyes.com
- URL :www.aciddyes.com
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4.4'-Diamine dipheny-2.2'-disulfonic acid