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阀壳铸件热处理工艺的改进中国第二重型机械集团公司铸造分厂（四川德阳６１８０１３）方英照ＩｍｐｒｏｖｉｎｇＨｅａｔＴｒｅａｔｍｅｎｔＰｒｏｃｅｓｆｏｒＶａｌｖｅＳｈｅｌＣａｓｔｉｎｇｓＦａｎｇＹｉｎｇｚｈａｏ《金属热处理》是我工作中不可缺少的学习资料，...
Valve shell casting heat treatment process improvement China’s second heavy machinery group foundry (Deyang, Sichuan 618013) Fang Yingzhao ImprovingHeatTreatmentProcesforValveShelCastingsFangYingzhao “Metal heat treatment” is an indispensable learning materials in my work, ...