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| | | Twin Sheet Thermoforming - Advantages and Features 28 Jan 2010 Spencer Industries is proud to announce that it can do Twin Sheet Thermoforming. This process is accomplished by heating two extruded plastic sheets simultaneously and then forming and sealing or fusing these two sheets together during the thermoforming process. | |
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| | .jpg) | Innovative Living Hinge Roll-up Door for Box Trucks 1 Sep 2009 Imagine this could be the Last Door you ever have to purchase for your Box Trucks! | |
