AJ Industries Inc. is one of the largest full-service part marking facility in the United States. Located 30 minutes northwest of Minneapolis, AJ Industries offers state-of-the-art design, engineering and marking for all types of material and part configuration. We support a wide range of businesses, corporations and industries with the following: CNC Laser Marking Precision Medical Passivation CNC Engraving and Routing Mechanical Marking Pad Printing Screen Printing AJ Industries is an ISO 9001:2008 registered company committed to working closely with each customer to provide competitive pricing and exceed expectations in accuracy, service and delivery.