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ASTM B240-2017 鑄造與模鑄件用鋅和鋅鋁合金錠的規格 Standard Specification for Zinc and Zinc-Aluminum (ZA) All...2023-07-25

ASTM B179-2017所有鑄造工藝鑄件用鋁合金錠和溶融鋁合金的規格Standard Specification for Aluminum Alloys in Ingo...2023-04-23

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