SDJ 249.2-1988 Quality degree evaluation standard for unit engineering of water resources and hydropower capital construction engineering (Part II) Installation engineering of metal structure and hoist machines was changed to SL 635-2012 Inspection and assessment standard for separated item project construction quality of water conservancy and hydroelectric engineering.Installation of metal structures.
SDJ 249.2-1988 Quality degree evaluation standard for unit engineering of water resources and hydropower capital construction engineering (Part II) Installation engineering of metal structure and hoist machines was changed to NB/T 35097.2-2017 Hydropower Engineering Unit Engineering Quality Grade Assessment Standards Part 2: Metal Structure and Hoist Installation Engineering.
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