Before concrete vibration starts, plan well number of sets of sample blocks to be retained and check whether on-site form testing is enough.
混凝土振捣前做好试块留置组数计划，并检查现场试模是否够。
Before concrete vibration starts, plan well number of sets of sample blocks to be retained and check whether on-site form testing is enough.
混凝土振捣前做好试块留置组数计划，并检查现场试模是否够。
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