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Product description：
3-ply spiral wound construction for strength.
Eco-Friendly Materials Available
Tubes are reusable and recyclable.
Tube Inner diameter:20mm~140mm
Tube Wall thickness:1mm~8mm
The majority of cardboard tubes have a spiral wound design, made stronger by added adhesives. In the first stage of how cardboard tubes are made, large cardboard sheets are trimmed into narrow ribbons, before an application of adhesive coating and diagonally wrapped around a custom sized and shaped mandrel.
Product description：
3-ply spiral wound construction for strength.
Eco-Friendly Materials Available
Tubes are reusable and recyclable.
Tube Inner diameter:20mm~140mm
Tube Wall thickness:1mm~8mm
The majority of cardboard tubes have a spiral wound design, made stronger by added adhesives. In the first stage of how cardboard tubes are made, large cardboard sheets are trimmed into narrow ribbons, before an application of adhesive coating and diagonally wrapped around a custom sized and shaped mandrel.
