4322 Class

Ventilation, gas and water fitting installation and maintenance activities

通風、燃氣及水務設備系統安裝及保養活動

Classification Hierarchy

F — Construction › 43 › 432 › 4322

Related Codes in the Same Group

4321

Electrical equipment installation and maintenance

電器設備安裝及保養

 4329

Other construction installation and maintenance

其他建築設施安裝及保養