General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 50531-2009
Scope
This standard applies to the division of equipment and materials in construction project valuation activities, as well as the classification and calculation of equipment and material costs.
GB/T 50531-2009 history
2009GB/T 50531-2009 Standard of valuated building services and componets' classification