Some lasers are enclosed in plastic casings that can easily crack. Other people are enclosed in strong metallic frames that face up to direct shocks and secure The inner elements. If you want to even further take a look at the physics behind laser technologies, It's also possible to view https://www.bookmarkingtraffic.win/10-wrong-answers-to-common-fiber-laser-marker-price-questions-do-you-know-the-right-ones