contact alloys meaning in English

电触头合金

Standard specification for gold electrical contact alloy
电接触用金合金标准规范
Standard specification for palladium electrical contact alloy
电触点用钯合金标准规范
Specification for gold - silver - platinum electrical contact alloy
金银铂电触点合金规范
Specification for palladium - silver - copper electrical contact alloy
钯银铜电触点合金规范
Standard specification for coin silver electrical contact alloy
电触点货币银合金标准规范

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