chromium/chrome/browser/resources/print_preview/ui/pages_per_sheet_settings.html

<style include="print-preview-shared md-select">
</style>
<print-preview-settings-section>
  <span id="pages-per-sheet-label" slot="title">$i18n{pagesPerSheetLabel}
  </span>
  <div slot="controls">
    <select class="md-select" aria-labelledby="pages-per-sheet-label"
        disabled$="[[disabled]]" value="{{selectedValue::change}}">
      <option value="1" selected>1</option>
      <option value="2">2</option>
      <option value="4">4</option>
      <option value="6">6</option>
      <option value="9">9</option>
      <option value="16">16</option>
    </select>
  </div>
</print-preview-settings-section>