英国采购需求：黄芪甲苷，黄芪甲苷含量0.3%-98%，黄芪提取物黄芪甲苷，黄芪提取物环黄芪醇，黄芪提取物生产商，黄芪提取物多糖

I'm interested in sourcing Astragalus Extract Powder for a new project we're working on. Could you please provide detailed information on your product, including specifications, quality standards, and available quantities? Additionally, I'd like to know about your pricing, lead times for production, and any certifications you may have. If you have samples available, that would be great to evaluate. Looking forward to your prompt response to help us move forward!