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並前往https://www.bis.doc.gov/index.php/documents/federal-register-notices-1/3316-ccl2-5/file

CATEGORY 2 - MATERIALS PROCESSING Note

between 20 Hz to 2,000 Hz while imparting forces equal to or greater ... Note 1 to 2B352.g.2: 2B352.g.2 controls class III biosafety cabinets ...

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