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International Standard Category: Mining and minerals

GBJ 213-1990    Specifications for construction and acceptance of mine shaft and tunnel structure
矿山井巷工程施工及验收规范 ;
Category No.:73 Valid Status:superseded
Issued Organization: Issued Date:1990-06-26
Implemented Date:1991-5-1 Abolished Date:
Superseded Standard.:GB 50213-2010 Code for acceptance of shaft sinking and drifting of coal mine
Superseded Date:2010-12-1
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