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International Standard Category: Cement. Gypsum. Lime. Mortar

GB 12958-1999    Composite portland cement
复合硅酸盐水泥 ;
Category No.:91.100.10 Valid Status:superseded
Issued Organization:SQTSB Issued Date:1999-07-03
Implemented Date:1999-1-2 Abolished Date:
Superseded Standard.:GB 175-2007 Common Portland Cements
Superseded Date:2008-6-1
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