Grand traverse plastics corp. Is a full service custom plastic injection molding design and manufacturing firm. The company operates molding presses ranging from 200 ton to 1100 ton. We specialize in deploying customized error-proofing processes specific to the components and assemblies we manufacture. This focus on quality and continuous improvement resulted in the company being honored to receive both the GM North American operations supplier of the year award and the GM powertrain supplier of the year award. We have experience with a wide variety of plastic resins.