| | J D Plating Works Inc (Waukegan, IL) Copper, chrome, cadmium, zinc, nickel, electro & black oxide plating | |
| | Key Casting Co Inc (Sawyer, MI) Manufacture zinc & aluminum die castings | |
| | Kitchen-Quip Inc (Waterloo, IN) Hand-operated vegetable cutting machines; aluminum & zinc die castings | |
| | Lakeshore Die Cast Inc (Baroda, MI) Aluminum & zinc tooling, die casting & contract manufacturing | |
| | Lakeshore Electro-Plate Inc (Stevensville, MI) Zinc electroplating service | |
| | Liberty Engineering Co (Roscoe, IL) Paper industry testing equipment, candy making molds & EDM; zinc & pewter castings & machining | |
| | Lincoln Die Castings Inc (Roseville, MI) Zinc alloy & aluminum die castings | |
| | Metal-Cote Inc (Harrison Twp, MI) Painting, zinc phosphating, electrodeposition & powder coating | |
| | Michner Plating Co (Jackson, MI) Zinc electroplating | |
| | Mid-State Plating Co Inc (Flint, MI) Zinc plating & phosphate coating | |
| | New Products Corp (Benton Harbor, MI) Aluminum & zinc die castings | |
| | Northern Star Plating & Finish (Loves Park, IL) Phosphate, zinc & tin plating & metal finishing | |
| | Ohio Decorative Products Inc (Spencerville, OH) Zinc & plated die castings | |
| | Paffumi Mold & Casting Co (Chicago, IL) White (zinc) metal casting | |
| | Parr-Green Mold & Machine Co (North Canton, OH) Steel molds for plastic injection, zinc & aluminum die cast dies | |
