У вашего броузера проблема в совместимости с HTML5
We check out the new Brushless Grinder - DGA504Z, and compare it to Makita's old grinder, the DGA452. Write-up here: http://oztooltalk.com/makita-brushless-grinder-review-dga504z/
This may have you questioning whether to bring your corded grinder to the jobsite.
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https://www.makita.com.au/