埋管流化床在己二酸干燥装置上的应用，为PTA装置中干燥机的改进提供了一个新的思路。
The fluidized bed with immerged tube has been applied in adipic acid dryer device, which provides a new thought for the reformation of dryer in PTA device.
预弯边机是大直径直缝埋弧焊管生产线的关键设备之一。
Pre-bending machine is one of the most important facilities in the production of LSAW pipe with larger diameter.
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