Wooden cores equipped with a steel wave ring reinforcement at both ends which comply to the requirement in accordance with the ISPM-15 standards.

Production possible with different variations in diameter, size and completion:

- The diameter can vary from 80 up to 400 mm.
- Lenght (width) from 70 up to 4000 mm.
- A square continuous tube center from 35 up to 250 mm.