special l section steel tube
... special l screw 特制螺钉 special l section steel tube 异形钢管 special l shaped color lamp 异型彩色灯泡 ...
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special l section steel tube
特殊型钢管
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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There are three kinds of cross-section for special-shaped concrete-filled steel tube compound columns. They are cross-shaped, T-shaped and L-shaped.
异形钢管混凝土组合柱最常见的截面形式有三种，即十字形、T形和L形。
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