Zhejiang GoldLong leather chemical Co. Ltd. is a high-tech enterprise focus on research, manufacture and trade of acid dyes and direct dyes. Our products have all kinds of colors, cost-effective and get the certification of ROHS. Widely used in the dyeing of leather, textile, paper, fur, etc. We can customized our products according to the market demand. Strive to offer the most suitable products and the most efficient service to our customers. Our products are popular in domestic and foreign market.