CANGZHOU XINCHENG WEIYE CHEMICAL CO.,LTD is the largest RHODAMINE B FACTORY IN CHINA ,Its annual output is 6000 tons ,we also exporters and domestic distributors of a wide range of dyestuffs&intermediates. Our range of products includes basic dyes, cation dyes, direct dyes,acid dyes, solvent dyes,sulphur black . details www.xcwydye.com ...