andit 发表于 2020-3-17 13:10:25

ASTM B103 / B103M - 19

ASTM B103 / B103M - 19
Standard Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar

lotus999 发表于 2020-3-17 13:10:26

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andit 发表于 2020-11-3 08:57:55

求ASTM B103 / B103M - 19磷青铜厚板材、薄板材、带材和轧制棒材标准规范

chemyang 发表于 2020-11-3 13:00:57

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andit 发表于 2020-11-6 13:49:42

chemyang 发表于 2020-11-3 13:00 static/image/common/back.gif
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