每台送风机的出口发兰到空气加热器的一组管道。

One set of ducts from outlet flange of each forced draft fan to air heaters.

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该设备专用于通讯杆、高杆灯杆体端部与发兰盘自动环焊对接的焊机设备。

Used for welding the pole edge with the bottom flange for the telecom pole, street light pole.

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该研究得出了最新工艺配方，使发兰、磷化工艺具有低温性、低渣量、快速性、低成本的特点。

This article describes the newest technological formula, which lets the technology have some characteristic, such as low temperature, less dregs, rapidity and low cost.

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