空调制冷系统用30MnCr22钢管的热处理工艺
冯淳
Heat treatment process of 30MnCr22 steel pipe used in air conditioning system
Feng Chun
金属热处理 . 2014, (5): 90 -93 .  DOI: 10.13251/j.issn.0254-6051.2014.05.023