steel and concrete building​  (basic) and set the high good air , water flow

​

Set the two side to go , improve and provide better way to walk ; it easy to go and stay.

​

It's also provide the machine to

​

repair and provide the good sigh, if it's several years or need to improved to more.

​

鋼骨建材 高通風 排水佳

​

​

走道 安全路口 行走容易

​

如因年久或必要性工程考量可補材料 石板 水泥 烤漆

​

​

​