铬-稀土共渗
Cr-RE Thermochemical Treating
硼铬稀土共渗层
chrome RE boronized layer
RE-chrome-boride layer
硼—稀土共渗
boron and rare-earth co-permeation
自保护硼稀土共渗
Self-protective rare earth-boronizing
等离子体稀土氮碳共渗
plasma RE nitrocarburizing
深层稀土硼碳氮共渗
RE-B-C-N multi-elements deep penetration
RE-B-C-N multi-elements deep-penetrating
稀土催共渗
Rare Earth accelerated Co-Permeation
稀土氮碳硼共渗
RE N C B diffusion process
稀土多元共渗
rare earth multi-element penetration
稀土钒硼共渗
rare earth-borovanadizing
稀土硼铬共渗层
Re Chrome boronized layer