SA-213 T12换热管与SA-387Gr.11 CL2管板内孔对接焊接工艺研究
SA-213 T12환열관여SA-387Gr.11 CL2관판내공대접한접공예연구
Inner Hole Butt Welding Procedure of SA-213 T12 Tube to SA-387Gr.11 CL2 Tube-sheet
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