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What is vacuum bellows?

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Vacuum bellows can be divided into two categories: spiral bellows and annular bellows according to the shape of the wave. All the corrugations can be connected by a spiral line; the annular corrugated pipe is a tubular shell with a closed circular corrugation, and its corrugations and corrugations are connected by a series of annular corrugations. The annular bellows can be divided into U-shaped, C-shaped, S-shaped, V-shaped, and Q-shaped bellows due to the nature of the waveform. In order to improve the bearing capacity, multi-layer (mostly double-layer and three-layer) corrugated pipes and corrugated pipes with reinforcing ribs in the middle have been continuously developed.

What is vacuum bellows?
Vacuum bellows can be divided into two categories: spiral bellows and annular be
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