科特迪瓦采购需求：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）

We are interested in sourcing a high-quality sulfur black product for our upcoming projects. Please provide us with detailed specifications, including your available grades, pricing, and volume discounts. Additionally, if you have any relevant certifications or quality assurance processes, we would appreciate that information as well. Could you also share your lead times for production and shipping? Understanding the logistics will help us plan our inventory effectively. We're looking forward to your prompt response so we can discuss potential collaboration further. Thank you!