- double bellows
- مانع تسرب مُنفاخي مزدوج
English-Arabic automotive engineering dictionary. 2015.
double bellows
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Double Acting Piston Bellows — are a type of bellows, used by blacksmiths and smelters, with the property that air is blown out on both strokes of the handle (in contrast to more common bellows that blow air when the stroke is in one direction and refill the bellow in the… … Wikipedia
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