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标题: ASTM B477-97(2017) [打印本页]

作者: itjetk 时间: 2019-11-22 09:11:25 标题: ASTM B477-97(2017)

ASTM B477-97(2017) Standard Specification for Gold-Silver-Nickel Electrical Contact Alloy

作者: shukesan 时间: 2019-11-22 09:11:26

ASTM B477,539,541,542,576,596,615,617,628,667,693,742,854,878Electrical Contact
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