The tunnel scaffolding materials used in tunnel construction shall meet the following standards：
High strength: tunnel scaffolding needs to withstand heavy loads during tunnel construction and ensure safety.
Corrosion resistance: Due to the harsh tunnel construction environment, the materials used in steel scaffolding need to have a certain corrosion resistance.
Good stability: the tunnel scaffolding needs to be stable during the tunnel construction process and is not easy to tilt or collapse.
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