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3 inch pneumatic expandable shaft steel material core supporting
3 inch pneumatic expandable shaft steel material core supporting
3 inch pneumatic expandable shaft is a popular used core shaft for paper core holding and taking out. It is easy operation and enhance working efficience.

For this 3 inch pneumatic expandable shaft, it can be made with steel and aluminum two materials. As usually, the steel material pneumatic expandable shaft bear loading weight is heavier than aluminum material.
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