TSIC 3 • 얼음,POISSY

NAF Rev.2 (FR 2008) : Steam and air conditioning supply (3530Z)

NACE Rev.2 (EU 2008) : Steam and air conditioning supply (3530)

ISIC 4 (WORLD) : Steam and air conditioning supply (3530)

NACE Rev.2.1 (EU 2025) : Steam and air conditioning supply (3530)