如果IE真的長這樣你願意一直使用她嗎?這樣也太可愛
INTERNATIONAL ISO STANDARD 898-2 - شرکت فراسازان پیچ گستر پارس INTERNATIONAL STANDARD ISO 898-2:2012(E) Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2: Nuts with specified property classes — Coarse thread and fine pitch thread 1 Scope This part of ISO 898 specifies mechanical and ......
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