Inquiry (采购产品): X-Ray Film Step Tablets I need information regarding the purchase and part numbers for the 17 step calibrated X-Ray Step tablet. The catalog # I have is 1842137. Thank You, Donald Martel Metrology Supervisor Raytheon Co. 350 Lowell St. Andover, MA 01810 **** Hidden Message ***** Donald Martel 01810 Company: Raytheon Co. E-mail: donald_j_martel@raytheon.com **** Hidden Message ***** donald_j_martel@raytheon.com