印度采购需求：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 reaching out to inquire about sulfur black, as I'm looking to source this product for upcoming projects. Could you please provide details regarding your available grades, including any relevant specifications? Additionally, I'm interested in the pricing structure, minimum order quantities, and lead times for delivery. Furthermore, if possible, I'd like to understand the available packaging options and any certifications you may hold for the product. This info will help me assess the best fit for my needs. If you could share any samples or technical data sheets, that would be great too! Looking forward to your prompt response so we can move forward on this.