In-Line Expanding Tube Production:
Model Helix Double-XX
The Magic Box Machine - One of Our Most Revolutionary Inventions
This machine will not only make Spiral Expanded Tubes, but will also simultaneously do the expanding. The need to purchase or pre-fabricate expanded material is now a thing of the past.
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U.S.A. Patent No. 8,578,576 & No. 8,578,577 ; South Korean Patent No. 10-1157119;
Russian Patent No. 2429094; Chinese Patent No. ZL 200680043312.4
Other worldwide patents pending.