itjetk 发表于 2019-11-22 09:13:32

ASTM B542-13

ASTM B542-13 Standard Terminology Relating to Electrical Contacts and Their Use


shukesan 发表于 2019-11-22 09:13:33

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