shukesan 发表于 2018-1-10 19:20:51

A703/A703M − 17

A703/A703M − 17
Standard Specification for
Steel Castings, General Requirements, for Pressure-
Containing Parts

admin 发表于 2018-1-15 11:06:41

谢谢您的分享，金币已奖励!
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