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本指导性技术文件适用于铸造黄铜的熔炼。1总则1．1按本技术文件生产的铸造黄铜合金;其化学成分和机械性能应符合GB1176—74《铸造铜合金》的规定。
This guidance document is applicable to the casting of brass. 1 General 1.1 casting brass alloy according to the technical documents; its chemical composition and mechanical properties should be consistent with GB1176-74 “casting copper alloy” requirement.