大型圆筒形焊接结构火焰自动气刨方法及专用设备。

The invention relates to a large cylindrical welding structure flame automatic air gouging method and a special device.

youdao

大型圆筒形焊接结构火焰自动气刨方法及专用设备。

The invention relates to a large cylindrical welding structure flame automatic air gouging method and a special device.

youdao