exec_SELECTquery
array(4 items)
   caller => 'TYPO3\CMS\Core\Database\DatabaseConnection::exec_SELECTquery' (60 chars)
   ERROR => 'Unknown column 'l18n_parent' in 'where clause'' (46 chars)
   lastBuiltQuery => 'SELECT * FROM tx_wkproducts_domain_model_filter WHERE hidden=0 and deleted=0
       and (sys_language_uid IN (-1) OR sys_language_uid= 1) and ( (l18n_parent=1
      53 OR l18n_parent=149 OR l18n_parent=147 OR l18n_parent=143 OR l18n_parent=1
      27 OR l18n_parent=119 OR l18n_parent=107 OR l18n_parent=99 ) AND `sys_langu
      age_uid` IN (1,-1) ) GROUP BY parentcategory ORDER BY sorting
' (365 chars) debug_backtrace => 'require(typo3_src-8.7.19/typo3/sysext/frontend/Resources/Private/Php/fronten
      d.php),index.php#3 // {closure}#24 // TYPO3\CMS\Frontend\Http\Application->r
      un#23 // TYPO3\CMS\Core\Core\Bootstrap->handleRequest#79 // TYPO3\CMS\Fronte
      nd\Http\RequestHandler->handleRequest#316 // TYPO3\CMS\Frontend\Page\PageGen
      erator::renderContent#211 // TYPO3\CMS\Frontend\ContentObject\ContentObjectR
      enderer->cObjGet#195 // TYPO3\CMS\Frontend\ContentObject\ContentObjectRender
      er->cObjGetSingle#682 // TYPO3\CMS\Frontend\ContentObject\ContentObjectRende
      rer->render#736 // TYPO3\CMS\Frontend\ContentObject\TemplateContentObject->r
      ender#820 // TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer->cObjGet
      Single#147 // TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer->render
      #736 // TYPO3\CMS\Frontend\ContentObject\ContentContentObject->render#820 //
       TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer->cObjGetSingle#96 //
       TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer->cObjGetSingle#718 /
      / TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer->render#736 // TYPO
      3\CMS\Frontend\ContentObject\CaseContentObject->render#820 // TYPO3\CMS\Fron
      tend\ContentObject\ContentObjectRenderer->cObjGetSingle#44 // TYPO3\CMS\Fron
      tend\ContentObject\ContentObjectRenderer->cObjGetSingle#718 // TYPO3\CMS\Fro
      ntend\ContentObject\ContentObjectRenderer->render#736 // TYPO3\CMS\Frontend\
      ContentObject\FluidTemplateContentObject->render#820 // TYPO3\CMS\Frontend\C
      ontentObject\FluidTemplateContentObject->renderFluidView#106 // TYPO3Fluid\F
      luid\View\AbstractTemplateView->render#340 // layout_Default_html_8516772c34
      c4299de2e0dc05fafad11b3aaaaea8->render#201 // TYPO3Fluid\Fluid\ViewHelpers\S
      pacelessViewHelper::renderStatic#1639 // layout_Default_html_8516772c34c4299
      de2e0dc05fafad11b3aaaaea8->{closure}#55 // TYPO3Fluid\Fluid\Core\ViewHelper\
      AbstractConditionViewHelper::renderStatic#1631 // layout_Default_html_851677
      2c34c4299de2e0dc05fafad11b3aaaaea8->{closure}#85 // TYPO3Fluid\Fluid\ViewHel
      pers\RenderViewHelper::r...
' (3567 chars)
Stone impact tester
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Test stand for stone impact tests

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Impact testing on car radiators

Stone impact tester

Test stand for stone impact tests

This stone chip tester can be used to test large components in particular, such as car radiators.

The test stand is tightly clad on all sides and can be opened from two sides. The firing device can only be operated when the door is closed. 

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Safe test results:
certifications