埃塞俄比亚采购需求：阴离子粉，阴离子絮凝剂，阴离子聚丙烯酰胺，阴离子聚电解质，阴离子聚合物，apam

I'm reaching out to inquire about the availability and options for a blue-black color variant in your product line. We're particularly interested in understanding the specific shades you offer, including any variations that might fit our requirements. If possible, please send over samples or color swatches to help us visualize the options available. Additionally, could you provide details regarding the minimum order quantities, lead times, and pricing for bulk orders? We aim to make a decision soon, so any information on the current stock levels and any related promotional offers would also be appreciated. Looking forward to your prompt response!