大型渗碳淬火齿圈
Large-scale Carburized Gear Rim
氮基渗碳气氛
nitrogen based carburizing atmospher
渗碳淬火
carburizing quench
carburizing quenching
cementite quenching
carburate quenching
carburizing and quench hardening
Carburizing and Quenching
carburization and quenching
Carburizing and Hardening
Carbureted and quenching
carburized
Carburizing quenchecl
carburizing-quenching
渗碳淬火齿轮
Carburizing and Hardening Gears
渗碳淬火热处理
Carburizing and Quenching
保护气氛电渣
electroslag furnace under protective Ar gas
保护气氛钎焊
controlled atmosphere brazing
保护气氛热处理
Protective atmosphere heat treatment
N2 shielded heat-treatment
保护气氛退火
protective atmosphere annealing
氮基保护气氛
nitrogen-based atmosphere
可控气氛保护
controlled atmosphere protect
减压氩气气氛火花放电等离子体
reduced-pressure argon spark discharge plasma