Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB/T 25808-2021 |
Sulphur black 2BR、3B 200% 硫化黑2BR、3B 200% |
China National Standards 2BR、3B |
English PDF |
GB/T 25808-2010 |
Sulphur black 2BR、3B 200% 硫化黑2BR、3B 200% |
China National Standards 2BR、3B |
English PDF |
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