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工地旋挖钻机，牙轮钻头销孔不对位，最后要把它焊起来才行
工地旋挖钻机，牙轮钻头销孔不对位，这个钻头方口是250的，里面加了一个套，套往下掉了，所以不对位，最后要把它焊起来才行
工程机械设备260/444
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