快速渗碳工艺
rapid carburizing process
离子氮-碳-钛三元共渗新工艺
new technology of ionitro-carbon-titanizing
碳氮共渗工艺
carbonitriding technology
负压铸渗工艺
Vacuum infiltration technology
铸渗工艺
cast-penetration process
cast-penetration technics
casting penetration processing
Casting in place surface hardening process
Cast-penetration techniques
cast-in-face’s process
casting in place hardfacing process
cast-in-place Hardening process