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| 0001699136-21-000044.txt | 2021-03-11 09:45:26 | |
 0001699136-21-000044-xbrl.zip | 53596 | 2021-03-11 09:45:26 |
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| Financial_Report.xlsx | 5438 | 2021-03-11 09:45:26 |
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| Show.js | 1085 | 2021-03-11 09:45:26 |
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| whd-20210309.xsd | 2424 | 2021-03-11 09:45:26 |
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| whd-20210309_lab.xml | 25282 | 2021-03-11 09:45:26 |
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