GBT21087

GBT21087, Total:2 items.

The international standard classification for "GBT21087" includes: Ventilation and air-conditioning systems .

The Chinese standard classification for "GBT21087" includes: Heat supply and heating engineering .

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

• GB/T 21087-2007 Air-to-Air Energy Recovery Equipment

国家市场监督管理总局、中国国家标准化管理委员会

• GB/T 21087-2020 Energy recovery ventilators for outdoor air handling

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