美国采购需求：钨，钨管

I'm looking for a quote on tungsten tubing options, specifically pure tungsten or 1% lanthanated tungsten. The dimensions I need are approximately 6.0mm outer diameter, 3.8mm inner diameter, and a length of around 700mm, but I'm open to similar alternatives as well. Could you please provide pricing, lead times, and any available specifications or certifications for these products? Additionally, if you have any recommendations for comparable items, that would be great. Looking forward to your response and hoping we can work together!