LVL timber Purpose: for all kinds of fumigation-free PackingCartons Framework Quality Standard: It should have even thickness, no unglued and no bubble. On the face side, the color should be consistent, and there should be no glues passing through, no worm bore, no mildew, and no crack. There can be jointedor repaired in the back. Glue: E2 Urea-formaldehyde Resin Static Bending Strength: ≥50MPa Modulus of elasticity: ≥7000MPa