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预应力高强混凝土管桩用硅砂粉
Ground silica sand used for pretensioned spun high-strength concrete piles
价格：￥0.00
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超声回弹综合法检测混凝土强度技术规程(附条文说明)
Technical specification for detecting strength of concrete ultrasonic-rebound combined method
价格：￥0.00
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商品砌筑砂浆现场检测技术规程(附条文说明)
价格：￥19.00
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水工混凝土外加剂技术标准
Technical code for hydraulic concrete admixtures
价格：￥0.00
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公路工程水泥混凝土试验规程(附条文说明)
价格：￥0.00
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