The present invention relates to an air guidance system for a motor vehicle, comprising at least two air guidance channels (1, 2) produced in a blow molding process or 2-plate thermoforming process, wherein the air guidance channels (1, 2) overlap in a com...

In a novel variable-volume body fillable with fluid, consisting of at least two overlying films (1,2) (preferably of plastics) welded together along at least one closed curve (specifically the peripheral edge), the films are parallel to each other at the s...