Inquiry (采购产品): 20 AL calibration spheres Can you manufacture 20" calibration spheres out of 6061 aluminum with a 0.150" wall thickness and 0.040" wall thickness? If so, please e-mail me a quote. Thank you. **** Hidden Message ***** Brad FOLLO 93012 Company: Tetra Tech/EMC Inc E-mail: brad.follo@emc-inc.com **** Hidden Message ***** brad.follo@emc-inc.com