母合金 meaning in English

key metal
master alloy
mother alloy
mother metal

Copper and copper alloys - master alloys ; german version en 1981 : 2003
铜及铜合金.母合金
Specification for zinc master alloys for use in hot dip galvanizing
热浸镀锌用锌母合金规范
Copper and copper alloys - master alloys
铜及铜合金.母合金
Standard specification for zinc master alloys for use in hot dip galvanizing
热浸镀锌用锌母合金的标准规范
Aluminium and aluminium alloys - master alloys produced by melting - specifications
铝和铝合金.熔铸母合金.规范

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