Inquiry (采购产品): Cost estimate for aluminum tubing Please email a cost estimate for seamless aluminum, 6061-T6 tubes with 18" ID, 22" length, 0.12" wall in quantities of 1 to 5000. These are to be used in the fabrication of vacuum chambers for a radio astronomy telescope arrays we are designing. **** Hidden Message ***** Sander Weinreb Pasadena, CA 91106 USA Company: Caltech Title: Faculty Associate E-mail: sweinreb@caltech.edu **** Hidden Message ***** sweinreb@caltech.edu