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International Standard Category: Mechanical systems and components for general use

GB 50231-2009    General code for construction and acceptance of mechanical equipment installation engineering
机械设备安装工程施工及验收通用规范 ;
Category No.:21 Valid Status:valid
Issued Organization:AQSIQ, MOC Issued Date:2009-03-19
Implemented Date:2009-10-1 Abolished Date:
Superseded Standard.: Superseded Date:
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