NB/T 20259.5-2021 Bill of Quantities Valuation Specifications for Nuclear Power Plant Construction Projects Part 5: Electrical Equipment Installation Engineering (English Version)
2021NB/T 20259.5-2021 Bill of Quantities Valuation Specifications for Nuclear Power Plant Construction Projects Part 5: Electrical Equipment Installation Engineering
2014NB/T 20259.5-2014 Code of valuation on bill of quantities of nuclear power plant construction works.Part 5: Electrical equipment installation