We are specializing in the manufacture and export of Optical Brighteners and Series of Intermediates. Our product include OB(OBA184), )B-1(OBA303),KCB(OBA367),FP127,KSB,VBL,BA,BBU,DMS,CBS-X and so on.If anything need us to help, pls feel free to contact with me by e-mail wangjizan2001(at)yahoo.com.