The character of lightweightsteelstructure portal frame was introduced.
对门式刚架轻型钢结构的组成特点进行了简单介绍。
2
The roofing system in lightweightsteelstructure is composed of roof truss, structural OSB panel, waterproof layer and lightweight roofing tile, which is also named metal or asphalt tile.
轻钢结构住宅屋面系统是由屋架、结构OS B面板、防水层、轻型屋面瓦，又为金属或沥青瓦，组成的。
3
The lightweightsteel balustrade minimizes the amount of structure required, again reducing the impact on the environment.