... concrete lintel 混凝土过梁 Steel Lintel 钢过梁 fire lintel 货物起卸口防火过梁 ...
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reinforced concrete lintel 钢筋混凝土过梁
cinder concrete lintel 焦渣混凝土过梁
reinforced aerated concrete lintel 钢筋加气混凝土过梁
precast concrete lintel 预制混凝土过梁
reinforce concrete lintel beam 普通连梁
cast-in-place concrete lintel 现浇混凝土过梁
steel-concrete composite lintel 钢骨连梁
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