| 1. | Choi structural steelwork of the manufacture , marketing
彩钢结构件制造、销售。 |
| 2. | Building products manufacturing of structural steelwork
建筑钢结构产品制造。 |
| 3. | Structural steelwork ; analysis of safety against buckling of plates
钢结构.稳定性.钢板翅曲 |
| 4. | Structural steelwork ; design and construction
钢结构.设计和建造 |
| 5. | Caigang watt production ; structural steelwork aircraft processing
彩钢瓦的生产；钢结构架的加工。 |
| 6. | Structural steelwork public works category
结构钢筋工程 |
| 7. | Structural steelwork ; analysis of safety against buckling of shells
结构钢制品.第4部分:防止壳体变形的安全性分析 |
| 8. | Structural steelwork ; analysis of safety against buckling of linear members and frames
钢结构.稳定性.捧和捧杆系统弯曲 |
| 9. | Light structural steelwork
轻结构钢料 |
| 10. | Caitu ; structural steelwork ; heteromorphosis steel products manufacturing and processing
彩涂板；钢结构；异型钢制品制作、加工。 |
