產品目錄 Products code
Globe valve • 應用規范 Application Norm: 1. 設計制造按 GB 12235-89 Design Manafacfure According to GB12235-89 2. 結構長度按 GB 12221-89 Face to Face According to GB 122221-89 3. 法蘭尺寸按 JB/T79-94 Flange Dimenaion Accoring to JB/T79-94 4. 閥門檢查和試驗按 GB13927 Valve Check and Test According to Gb 13927 • 結構 Srtucture: B.B:OS&Y Characteristic:B.B;OS&Y
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