drilling and perforating

In this blog item i show you different video’s related to the subject of holes, perforations and drilling and perforating colleagues i discovered browsing the internet. In deze videoblog laat ik verschillende filmpjes zien die ik tegenkwam op het internet, die verwantschap hebben met de onderwerpen gaten, perforaties, boren, perforeren, today drilling and perforating # 8 core drilling in concrete wall on a dam/ kernboren in betonnen damwand

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