设计了一套挤胀成形三通管接头的通用装置，并利用此装置进行了三通挤胀成形实验。
A universal device is designed for this study, with the device the forming of tee junction could be done.
管路用钢法兰盘，锻制管接头，阀门和零件的通用要求规范。
Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications.
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