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The invention relates to a large cylindrical welding structure flame automatic air gouging method and a special device.
大型圆筒形焊接结构火焰自动气刨方法及专用设备。
youdao
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The invention relates to a large cylindrical welding structure flame automatic air gouging method and a special device.
大型圆筒形焊接结构火焰自动气刨方法及专用设备。
youdao