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International Standard Category: Steel profiles

GB 707-1988    Hot-rolled channel steel-Dimensions,shape,weight and tolerances
热轧槽钢尺寸、外形、重量及允许偏差 ;
Category No.:77.140.70 Valid Status:abolished
Issued Organization:Ministry of Metallurgical Industry Issued Date:1988-08-09
Implemented Date:1989-7-1 Abolished Date:2009-04-01
Superseded Standard.:GB/T 706-2008 Hot rolled section steel
Superseded Date:2009-4-1
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