Developed excogitates of two decumbence and one horizontal molding die realized the increasing height of branch pipe of heat pressure tee.
研发出了两个横梁和一个水平成型模具，实现了热压三通支管高度的增加。
Whenthe discharge is higher than a certain value in a branch pipe, on self - excited vibration will produce.
在分支管路中，当分支管中的流量大于某一值时，自激振动就不会产生。
Welding seam should be numbered according to pipeline medium set, in principle, main pipe prior to branch pipe.
焊缝编号应根据管线介质流向进行编号，原则上应先主管后支管。
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