what are packaging clamshells
Clamshell Packaging. Clamshell packaging manufactured by Great River Plastics, LLC, is custom thermoformed for specific retail products. Plastic clamshell packages display products for optimum display value, anti-pilferage, and best use of shelf space.lamshell Packaging. Clamshell packaging manufactured by Great River Plastics, LLC, is custom thermoformed for specific retail products. Plastic clamshell packages display products for optimum display value, anti-pilferage, and best use of shelf space.