樓主: sjzrifdsa
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大家好！圖中板1和板2是兩個(gè)8mm厚的45號(hào)鋼板，用螺栓連接，用什么規(guī)格的螺栓？謝謝! |
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發(fā)表于 2021-5-12 18:00:25
