2025 New Standard 2 sets of SL/T842-2025 Guidelines for determining major accidents in production safety of water conservancy and hydropower projects SL/T843-2025 Guidelines for identifying hazard sources of water conservancy and hydropower projects
US$12.52
- Aktie: 100
- Modell: 10176521871437
- Gewicht: 0.15kg
- Abmessungen: 0.10cm x 0.10cm x 0.10cm
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