... welding pressure焊接压力 welding procedure焊接程序; 焊接次序; 焊接工艺; 焊接工艺过程; 焊接规程; 焊接施工 welding procedure drawing焊接施工全迅网 ...
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论述了PE燃气管材的性能和优缺点、焊接施工质量管理要点。
The performance, advantages and disadvantages of PE pipe material and the main points in quality management of welding construction are discussed.
介绍了管道全位置自动焊接施工过程和全位置自动焊接的优点。
The advantages of all-position automatic welding process in pipeline construction are introduced.
为确保产品的焊接质量，在正式焊接施工前必须进行焊接工艺评定。
To ensure the quality of welding products, welding procedure evaluation must be made before welding construction.
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