Inquiry (采购产品): Aluminum Nitride tubes Please send me a quote for the following two pieces. Both pieces are cylindrical, and one is smaller than the other so as to be fitted coaxially with a 2 mm gap. Here are the details: 1) Material: Aluminum Nitride ID: 180 mm OD: 186 mm Length: 400 mm Tolerance: + - 0.20 mm 2) Material: Aluminum Nitride ID: 190 mm OD: 196 mm Length: 400 mm Tolerance: + - 0.20 mm Notes: Perfect circular symmetry is not important as long as ~2 mm gap remains maintained all around with the tolerance specified (this will be used for fluid flow) (Radius tolerance: 0.2 mm) Length tolerance: 1 mm Straightness tolerance: 0.5 mm If you have any questions, please do not hesitate to email me. Thank you, Jerry Vera Engineering Research Associate Ad Astra Rocket Company Houston, TX **** Hidden Message ***** Jerry Vera Mailcode: ASPL 2101 NASA Parkway Houston, TX 77058 USA Company: Ad Astra Rocket Company Title: Engineering Research Associate Phone: 281-218-9494 Fax: 281-792-5661 E-mail: jgvera@adastrarocket.com **** Hidden Message ***** jgvera@adastrarocket.com