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MaquoketaA-DAC Plastics - Main Page Welcome to our online catalog! Included are samples of our most popular knobs. We offer other styles and sizes...with thousands of stock variations possible. Custom orders are also welcome! Design assistance is available! WE WROTE THE BOOK ON KNOBS! Standard Knobs! Custom Knobs! Industry's Knob Source for over 20 Years! PLUS... Custom Injection Molding High Volume Contract Assembly Specialists Home | About Us | Custom Injection Molder | Contract Assembly Knobs | Knobs2 | Knobs3 | Knobs4 | Contact Us TOLL FREE 1-888-923-6903 Phone: (563) 652-2222 • Fax: