7-Ply Carton Box
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Super heavy-duty export load bearing

7-Ply Carton Box

The "steel" packaging solution made of paper. Constructed from 3 corrugated fluted layers and 4 flat liners alternately, Tien Thanhs 7-ply carton box is specially designed to bear super heavy loads for long-haul sea export of agricultural products and mechanical machinery.

  • Extremely high Bursting Strength, withstands rough handling in containers.
  • Excellent moisture protection, no collapse during sea freight.
  • Load bearing capacity up to over 50kg - 100kg depending on structure.
  • Processed with double stitching or specialized heavy-duty glue.
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Technical Specifications

Physical Properties Unit Standard Value
Flute Structure - Triple Wall BCE, BCA, ABC
Total Paper Weight g/m² (gsm) 850 - 1500 gsm
Bursting Strength kgf/cm² ≥ 18.0 kgf/cm²
Edge Crush Test (ECT) kN/m ≥ 9.5 kN/m