Public entrances and exits carry more dust and sand particles, and it is easy to slip when there is rain

Rain easy to slip, need a strong ability to absorb water

Standing for a long time is easy to fatigue

Large flow of people, easy to bring dust and bacteria

Wet, slippery, easy to fall

Wet, slippery, easy to fall

Wet, slippery, easy to fall

Large flow of people, more dust and bacteria

The stream of people is more concentrated, and the ground material is easy to wear

The stream of people is more concentrated, and the ground material is easy to wear

There are oil stains, water stains, wet, slippery, easy to fall

There is static electricity, easy to cause fire