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The invention relates to a special butt joint sleeve for a large breakage anchor bolt and the butt joint method thereof.
本发明涉及一种大型破损地脚螺栓对接专用套筒及其对接方法。
youdao
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The invention relates to a special butt joint sleeve for a large breakage anchor bolt and the butt joint method thereof.
本发明涉及一种大型破损地脚螺栓对接专用套筒及其对接方法。
youdao