孟加拉采购需求：直接染料、酸性染料、碳酸钠、棉质直接染料、直接染料色卡、直接染料用途

I'm currently sourcing Sulphur black BR for an upcoming project and would like to gather detailed information about your offerings. Could you please provide specifics on your product specifications, available quantities, and pricing? Additionally, I am interested in understanding the production lead times and any potential discounts for bulk orders. If you have samples available, I'd appreciate details on how to request those as well. Looking forward to your prompt response!