美国采购需求：因科乃尔合金、哈氏合金、Inconel 718、Invar 36、Haynes 188、蒙乃尔合金

I'm reaching out to gather detailed information about your titanium capillaries. Specifically, I'm interested in options featuring inner diameters of 0.7mm and 0.4mm, with an outer diameter of 1.1mm. I'd like these in lengths ranging from 2 to 3 meters. Additionally, understanding the tolerance specifications you can meet and the inner surface roughness or finish would be extremely helpful for my assessment. Also, do you have any standard sizes that are close to these dimensions readily available in stock? It would be great to know if you have any alternatives or variations that might work for my application. Looking forward to your prompt response with the relevant details!