GBT6621
GBT6621, Total:2 items.
The international standard classification for "GBT6621" includes: Semiconducting materials .
The Chinese standard classification for "GBT6621" includes: Metal physical property test method , Semimetal and semiconductor material in general .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 6621-2009 Testing methods for surface flatness of silicon slices
- GB/T 6621-1995 Test methods for surface flatness of silicon polished slices
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