GB/T 23681-2009

Refrigerating systems and heat pumps - System flow diagrams and piping instrument diagrams - Layout and symbols

NORMA vydána dne 17.4.2009

Anglicky a čínsky -
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The information about the standard:

Designation standards: GB/T 23681-2009
Publication date standards: 17.4.2009
Country: Chinese technical standard
Kategorie: Technické normy GB