1FFrame: Made of Q235 galvanized rectangular steel tube, 40 x40 x1.5 mm.
2.4 Climbing wall padding: 15 mm plywood (Inspection standard: GB/T 5849-2006 (Plywood); formaldehyde emission (9-11 L), internal density deviation, moisture content, static bending strength, modulus of elcy, and internal bond strength meet the E0 grade requirements of GB/T 5849-2006.