指定管道目录。
Engineering contractor to design 1/4 in. Schedule 40S 316 SS piping interface to 3/4 in. Schedule 40 1G4 pipe.
由工程设计承包商设计到3/4英寸、壁厚系列号为401G4管道的1/4 英寸、壁厚系列号为40S 的316SS配管接口？
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。
With practical projects, authors introduce the construction method and principle, schedule, plan and technical points of the lifting construction of steel pipe arch truss segments.
通过工程实例，介绍了钢管拱桁架节段吊装施工的方法与原理、施工程序、施工布置及技术要点等。
With practical projects, authors introduce the construction method and principle, schedule, plan and technical points of the lifting construction of steel pipe arch truss segments.
通过工程实例，介绍了钢管拱桁架节段吊装施工的方法与原理、施工程序、施工布置及技术要点等。
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