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| 0001628280-22-012022-index.html | 2022-05-03 16:51:17 | |
| 0001628280-22-012022.txt | 2022-05-03 16:51:17 | |
 0001628280-22-012022-xbrl.zip | 417381 | 2022-05-03 16:51:17 |
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| cpk-20220331_lab.xml | 947525 | 2022-05-03 16:51:17 |
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| Show.js | 1085 | 2022-05-03 16:51:17 |