钢件的渗碳与碳氮共渗淬火回火
Carburizing or carbonitriding,quenching and tempering of steel parts
2017-11-01
JB/T 8491.4-2008
机床零件热处理技术条件 第4部分：渗碳与碳氮共渗、淬火、回火
Technical requirement heat treatment for machine tool parts--Part 4:carburizing or carbonitriding and quenching and tempering