巴基斯坦采购需求：硫化蓝BRN、液体硫化黑4GN、硫化黑BR 200%、靛蓝、罗丹明B、孔雀石绿（无铅）

I'm looking for detailed information on dyes suitable for use in leather manufacturing and PU applications. Specifically, I want to understand their properties, including color fastness, light stability, and any specific effects when applied to various leather types. Additionally, I'm interested in recommendations for your best-performing dyes and insights into their application methods. If you have any technical data sheets or samples available, please share those as well. Thanks!