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杭打ち込み前と後

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Photos: 杭打ち込み前と後

Photos: 杭、打ち込み中 Photos: 基礎の柱

杭を打ち込む前は、右一列のように杭が地面に立っています。機械で一本ずつ、ねじりこんでいきます。

Albums: Public

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