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| 0001564590-22-028483.txt | 2022-08-08 17:00:33 | |
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| cbt-10q_20220630.htm | 3643280 | 2022-08-08 17:00:33 |
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| cbt-ex32_8.htm | 9680 | 2022-08-08 17:00:33 |
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| Financial_Report.xlsx | 82904 | 2022-08-08 17:00:33 |
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