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International Standard Category: Spring steels

GB/T 1222-2007    Spring steels
弹簧钢;
Category No.:77.140.25 Valid Status:superseded
Issued Organization:AQSIQ,SAC Issued Date:2007-8-14
Implemented Date:2008-3-1 Abolished Date:
Superseded Standard.:GB/T 1222-2016 Spring steels
Superseded Date:2017-9-1
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