孟加拉采购需求：办公椅，办公桌，办公沙发，文件柜，学校家具，培训家具

I'm reaching out to inquire about your black product options. We are particularly interested in understanding the variety of shades, finishes, and materials you offer in black. If you have any catalogs, samples, or additional information regarding the specifications and potential applications of these products, we would love to review that. Additionally, could you provide details on minimum order quantities, lead times, and pricing? We're looking to make a decision soon, so any information you can share would be greatly appreciated. Thanks for your assistance, and I look forward to your prompt response!