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International Standard Category: Insulating gases |
Category No.: | 29.040.20 | Valid Status: | abolished |
Issued Organization: | STSB | Issued Date: | 1995-10-17 |
Implemented Date: | 1996-3-1 | Abolished Date: | 2010-06-01 |
Superseded Standard.: | GB/T 5238-2009 Monocrystalline germanium and monocrystalline germanium slices |
Superseded Date: | 2010-6-1 |
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