The roofing system in lightweight steel structure 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。
Its unique good waterproof function built in with the structure of the system, provide your life free from the harassment by the rain.
独特的系统结构具备良好的防水功能，让您的美好生活不受雨水影响。
Its unique good waterproof function built in with the structure of the system, provide your life free from the harassment by the rain.
独特的系统结构具备良好的防水功能，让您的美好生活不受雨水影响。
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