... steel composite construction 劲性钢筋混凝土结构 steel construction 钢结构 steel fire proof door 防火钢门 ...
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钢质防火门 Fire Resistance Steel Door ; fire resistant steel doorsets ; Steel fireproof door ; steel fire resistant door
电镀钢包防火门 Electro-Galvanised Steel-Clad Fire Door ; Clad Fire Door
防火钢推拉门 Resisting Steel Sliding Door ; fire-resisting steel sliding door
薄钢板防火门 sheet-metal fire door
广州镀锌钢质防火门门 steel fireproof doors
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