GRETO is the industry source for all of your core product needs.
Spiral Wound Construction:
GRETO provides spiral wound construction cores. These spiral tube cores are available in the following options:
- Diameters: 3/8” to 60”
- Lengths: To customer requirements
- Wall Thickness: Up to 1”
- Available in plain or printed with your name and / or special markings
- Available with special end closures
- Available with special finishes or coatings
Convolute Wound Construction:
GRETO provides convolute wound construction cores. These convolute cores are available in the following options:
- Diameters: 3/8” to 60”

- Length: to 72”
- Wall Thickness: Up to 1 ½”
Possible uses for convolute cores:
- Business Industry
- Banking Industry
- Cash Register Industry
GRETO also provides custom designed cores and shipping tubes upon request.
Contact us for more information or to request a quote.