Primary uses for wrot brass are for ball valve stems and balls, and iron valve stems. a forging grade of brass is used in ball valve bodies and pieces.

黄铜的主要用途是球阀阀杆和球体，和铸铁阀门的阀杆。可锻黄铜可用于球阀阀体和断口部件。

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The forming technology and parameters for hot forging of the brass brake shield, and the structure and the working process of the die were introduced.

介绍了黄铜闸板热锻成型工艺和参数，还介绍了模具结构及工作过程，提出了在热锻过程中应注意的几个问。

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