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Founded in 1963, Sonderen Packaging offers a range of folding cartons. It offers customized boxes and provides custom inks, hard surface coating and die cut options. The company conducts various quality assurance tests for its products that include opening force measurements, rub testing and spectrophotometer measurements. It has a more than 80,000-square-foot manufacturing facility and its equipment include printing presses, computer-aided design centers, die cutters and glue machines. The company has a staff of trained professionals who provide project management services. Its Web site offers packaging tips for clients. Sonderen Packaging is located in Spokane, Wash. It is a part of the Independent Carton Group.