yixiaoxiao 发表于 2017-5-29 05:57:36

A203A203M-93R99

A203A203M-93R99
Standard Specification for Pressure Vessel Plates, Alloy Steel, Molybdenum

admin 发表于 2017-5-31 10:30:22

谢谢您的分享,金币已奖励!
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