| http://www.w3.org/ns/prov#value | - By operating belts 6728 and 6730 with forward driving motion and pneumatic cylinder 6734 and dish 6732, spools 6720 can be carried through tubes 6710 and 6712 and delivered to thermoforming machines according to demand. [0968] Tubes 6710 and 6712 can be flooded with a suitable gas such as nitrogen or a blend of gases including argon, carbon dioxide, nitrogen and a quantity of oxygen that does not
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