socket welding end 承插焊端
welding end construction 焊接端结构
welding end inspeciton ruller 焊接头检查尺
rail-end welding 轨端补焊
Welding End Preparation of pipes 管子焊接端的准备
end welding 端接焊
rail end welding 轨端补焊
Welding Spiral End Mill 焊接螺旋立铣刀
When ordering Butt Welding End valves, specify schedule of pipe end and give complete data concerning style, figure number and contour of weld end.
在订购对焊连接阀门时，要指定管道连接端口的管壁厚度，并且提供有关类型、型号和焊接端等高线等参数。
When ordering other than standard Butt Welding end valves, specify schedule of pipe end and give complete data concerning style, figure number and contour of weld end.
如果订购其它标准的对焊连接的阀门，请告知管道管壁厚度标准，以及种类、型号和焊接端轮廓等参数。
Preheating shall be carried out for carbon and low alloy steel welding where required. Preheating temperature shall be kept uniform from the start to the end of welding.
在进行碳钢及低合金钢的焊接时应进行预热。预热温度在焊接开始到结束期间应保持均衡。
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