Deformed Ore-Stressed Concrete Steel Wire
Pre-stressed concrete structures 预应力混凝土结构 Deformed Ore-Stressed Concrete Steel Wire 预应力混凝土异形钢丝 unbounded partially pre-stressed concrete 无粘结部分预应力混凝土 ..
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Stressed Concrete Steel Wire
... Stressed Concrete Steel Wire 预应力混凝土异形钢丝 post stressed concrete 后张法预应力混凝土 post-stressed concrete 后张法混凝土 ...
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