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class 4 laser pointer of blue class 4 laser pointer of blue

class 4 laser pointer of blue

Arizona » Phoenix laser has two higher classifications: 3B and 4. which are officially in the "not toy" category, and even very simple, direct eyes, which can cause severe and lasting eye damage. For this class of the higher education stage, it is not only a potential, and is basically for sure. class 4 laser pointer for direct exposure to cause permanent eye damage, and may cause burns, especially when the focus. Because level 4 is the highest level, there is no difference between the relatively low-power 4-stage lasers, even if you ...

date: 14 Sep 2017 - 14 Sep 2018