GB 50231-2009
GB 50231-2009, Total:1 items.
The international standard classification for "GB 50231-2009" includes: .
The Chinese standard classification for "GB 50231-2009" includes: Mechanical equipment installation engineering .
Ministry of Housing and Urban-Rural Development of the People's Replublic of China
- GB 50231-2009 General code for construction and acceptance of mechanical equipment installation engineering
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