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International Standard Category: Semiconducting materials

GB/T 14139-2009    Silicon epitaxial wafers
硅外延片;
Category No.:29.045 Valid Status:abolished
Issued Organization:AQSIQ, SAC Issued Date:2009-10-30
Implemented Date:2010-6-1 Abolished Date:2020-05-01
Superseded Standard.:GB/T 14139-2019 Silicon epitaxial wafers
Superseded Date:2020-5-1
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