Springfield Plastics Mold Manufacturers 15 N Bechtle Ave Springfield Plastics, Inc. (SPI) has been a custom injection molder located in Springfield, Ohio. SPI offers a complete manufacturing operation, consisting of engineering services, injection molding, and various secondary operations. Springfield OH Plastics Mold Manufacturers Springfield Plastics Inc www.springfield-plastics.com plastic injection molding plastic injection springfield ohio custom injection molding Hardware Automotive Advertising Motorcycle Lawn Equipment and House Wares plastic injection molding plastic injection springfield ohio custom injection molding Hardware Automotive Advertising Motorcycle Lawn Equipment and House Wares Business Reviews Springfield Plastics Inc Testimonials