美国采购需求：英国版，口腔拭子DNA提取试剂盒，胶体金，新冠病毒抗原快速检测，DNA和RNA纯化，肺炎衣原体IgM抗体

I'm reaching out to inquire about your DNA extraction kits as we're looking to place an order soon. Could you please provide details on the different options available? Specifically, I'm interested in the pricing for bulk purchases and any potential discounts for larger quantities. Additionally, it would be helpful to know the lead times for delivery and whether you have any current stock or expected restock dates. Furthermore, if you have any product specifications, including key features or benefits of your kits, please share them with me. We're keen to ensure that the kits we choose will fully meet our needs in the lab. Your prompt response will help us in making a decision quickly, so looking forward to your detailed reply!