轧钢机用G20Cr2Ni4钢制轴承外圈渗碳热处理工艺
알강궤용G20Cr2Ni4강제축승외권삼탄열처리공예
Carburization Process for Outer Rings of Rolling Mill Bearing Made of G20Cr2Ni4 Steel
저자의 최근 논문