The article describes the fabrication methods and quality control factors on Heavy Box-Type Steel Headframe. 本文介绍了大型箱型钢结构井架的制作方法及质量控制要素。
The weatherability of the fireproof coatings for ultrathin steel structure plays an important role on its comprehensive fireproof performances. 超薄型钢结构防火涂料的耐候性是影响其防火性能的主要因素之一。
