The strength, toughness and surface hardness of medium Manganese austenitic steel have been increased greatly by casting surface alloying and complex modification.
通过铸造表面合金化和复合变质处理，使中锰奥氏体钢的强度、韧性和表面硬度显著提高。
Two new casting die steels were developed for press moulding of medium thickness steel plates.
对适合用作中厚板冷冲压模具的二种新研制的铸造模具钢作了介绍。
This article states a common working program of complicated lost foam product development systematically, through the medium of a typical model of lost foam casting production.
通过一典型产品的消失模铸造生产工艺，系统地阐述了复杂型消失模铸造产品研发的一般性工作程序。
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