shukesan 发表于 2019-11-29 11:00:56

B683 − 01 (Reapproved 2012) Standard Specification for Pure Palladium Electrical Contact Material

shukesan 发表于 2019-11-29 11:07:27

B663/B663M − 16 Standard Specification for Silver-Tungsten Carbide Electrical Contact Material

shukesan 发表于 2019-11-29 11:10:19

B662 − 94 (Reapproved 2012) Standard Specification for Silver-Molybdenum Electrical Contact Material

shukesan 发表于 2019-11-29 11:11:49

B631 − 93 (Reapproved 2016) Standard Specification for Silver-Tungsten Electrical Contact Materials

shukesan 发表于 2019-11-29 11:16:33

B563 − 01 (Reapproved 2017) Standard Specification for Palladium-Silver-Copper Electrical Contact Alloy

shukesan 发表于 2019-11-29 11:44:10

B540 − 97 (Reapproved 2017) Standard Specification for Palladium Electrical Contact Alloy

admin 发表于 2019-11-29 11:44:36

谢谢您的分享,金币已奖励!

shukesan 发表于 2019-11-29 11:45:25

B522 − 01 (Reapproved 2017) Standard Specification for Gold-Silver-Platinum Electrical Contact Alloy

shukesan 发表于 2019-11-29 11:46:48

B476 − 01 (Reapproved 2017) Standard Specification for General Requirements for Wrought Precious Metal Electrical Contact Materials

shukesan 发表于 2019-11-29 11:48:02

B277 − 18 Standard Test Method for Hardness of Electrical Contact Materials

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查看完整版本: ASTM B477,539,541,542,576,596,615,617,628,667,693,742,854,878Electrical Contact