Vat Dark Blue BO (Vat Blue 20) is a blue-violet powder which can be used in ink for printing on cotton fabrics.
Chongqing ChangFeng Chemical Co.,Ltd. is a leading manufacturer of high performance chemicals that use phosgene and aromatic amines as main intermediates. ChangFengChem has A major phosgene derivative production base and the largest capacity for phosgene production in China. The company offers a variety of products. Including products for the paint and coating, graphic arts and inks and adhesive and sealant industries.
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Chongqing Changfeng Chemical Co., Ltd. makes their documentation available in the regions indicated below:
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