A look at the inside operation of a prototype fuigo (鞴) box bellows...two intake valves, two manifold valves, one piston, one output, double action...more about fuigo here: islandblacksmit...
valves: islandblacksmit...
fuigo archive: islandblacksmit...
Негізгі бет SOTW #17 - Glass Top Fuigo - What's going on in there?
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