Main characteristics:
• Material and coating: corrugated steel core of 12mm covered with Copolymer Polypropylene of high impact resistance.
• Manhole steps have patterned surface to avoid falls.
• In accordance with EN 13101:
• Test of load: deflection ≤ 10mm on a vertical load of 2 kN, with permanent deflection ≤ 2mm -deflection ≤ 50mm on 4 kN, class I
• Unfix: minimal effort of 5 kN
• Impact: mass 20 kg drop shot to fall down from a height of 1 m
• Twisting: ≤ 5mm in the whole extension of the front bar