nbkxhwd@163.com 发表于 2018-5-7 13:09:34

ASTM A 240/240M-17 Standard Specification for Chromium and Chromium-Nickel Stain

Standard Specification for
Chromium and Chromium-Nickel Stainless Steel Plate,
Sheet, and Strip for Pressure Vessels and for General
Applications1

奔跑的虾米 发表于 2018-5-7 13:09:35

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