The square and rectangular tube of handling container by SPA-H strip can be meet the requirement of custom, and same assortment hot rolled coil strip can be replaced by it.

用该钢带制造的集装箱方矩形焊管完全可满足用户要求，可替代同品种的热轧卷板。

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The general occurrence and distribution of internal surface hollow and hole defect of hot continuous rolled seamless tube are introduced.

介绍了热连轧无缝钢管内表面凹坑、孔洞缺陷的基本形式和分布规律。

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Hot-rolled seamless steel tube column, as the main vertical load-bearing member, plays the role of structure transferring between the cast RC frame shear wall and the steel roof truss.

以热轧无缝钢管柱为主要竖向承重结构构件，承担现浇钢筋混凝土框架剪力墙结构与钢屋架之间的结构转换作用。

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