美国采购需求：钡（光亮退火）管、电抛光（电抛光）管、超高压管、仪表管、高精度管、高纯度管

I'm reaching out to inquire about your capabilities regarding a specific type of coaxial tube. I need a product that features a half-inch outer diameter and a quarter-inch inner diameter, constructed to meet certain ASTM standards. It's crucial that the materials used maintain quality and durability for our applications. Could you let me know if this type of coaxial tube is available for quotation? Additionally, I'd appreciate any details on your lead times, pricing, and minimum order quantities. Looking forward to your prompt response so we can discuss this further!