The present invention relates to piping (1) for use in industrial activities, where the piping (1) has a specific geometry.
本发明涉及用于工业活动中的管道(1)，其中管道(1)具有特定的几何形状。
The present invention relates to piping (1) for use in industrial activities, where the piping (1) has a specific geometry.
本发明涉及用于工业活动中的管道(1)，其中管道(1)具有特定的几何形状。
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