"Elements,Qualifying " CNS Standards List| Methods chemical | Cast Steel | Method Test | Valves liquefied | Hexagon thin | Slate dimension | Method test | Qualification certification | |
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CNS 13802-2
2021 Edition Graphical Symbols for Diagrams (Symbol Elements,Qualifying Symbols and other Symbols Having General Application) 電機工程製圖符號(符號元件、特定符號及其他通用符號) |
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