提高大规格冷作模具钢D2探伤合格率的锻造工艺研究
제고대규격랭작모구강D2탐상합격솔적단조공예연구
FORGING PROCESS FOR INCREASING THE ACCEPTABLE RATE OF FLAW DECTECTION FOR LARGE SPECIFICATION D2 COLD FORMING DIE STEEL
저자의 최근 논문