The at least one web extends vertically from at least one of the top and bottom of the header pipe and is connected to the flange.
至少一个腹板从集管管道的顶部和底部中至少一个竖直延伸并连接到凸缘上。
The at least one web extends vertically from at least one of the top and bottom of the header pipe and is connected to the flange.
至少一个腹板从集管管道的顶部和底部中至少一个竖直延伸并连接到凸缘上。
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