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Product Details
Handong 6" Strip type air expanding shaft
6" Strip type air expanding shaft is made of three piece or six piece long strips. After injecting air pressure, inside tube will expanded and then make long strips expanded out to grip paper core tightly.

For this strip type air shaft, its has 1", 3", 4", 5", 6" and 12" many size, it is customized as different customers' drawing. This pneumatic expanding shaft will protect paper core well.
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