Acid Dyestuff, Vat Dyestuff, Basic Dyestuff manufacturer / supplier in China, offering Direct Black Vsf 600 (CI Direct Black 22) 100% Dye for Textile Paper Use, Direct Vat Violet Bb (Direct Violet 51) Dyes for Textile Paper Use 5489-77-0, Ritan Dyestuff Direct Violet Bb (Direct Violet 51) 100% for Textile Paper Use and so on.