Electroformed Metal Bellows

Electrodeposited bellows are manufactured by forming a mandrelto the shape of bellows, depositing the proper thickness of metalon to the mandrel, trimming the plated mandrel to define the ends,and finally dissolving away the mandrel. This leaves behind a thinmetal, which is the bellows.
Shenyang Academy of Instrumentation Science is the earliest and thesole manufacturer for this kind of bellows in China.