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http://www.kitlaser.com/how-much-laser-pen-is-needed-to-form-a-deadly-weapon.html The principle of laser pen and how to choose A laser pointer is a tool that USES lasers as instructions.Can indicate the length of the more far, can replace the pointer indicating tools such as, can also be used, such as playing slide PPT for instructions.Use a laser pen, can see light spot in a few metres away, thus the laser pen are commonly used for instruction.
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a laser pointer tell you life
【著者】laserash
A green light laser pen flashlight can now shop online and traditional stores to buy. If you want to purchase these green laser online, you should check the store and find a shop that is most suited to your needs.(2017/09/28)
Close to the life of the laser pen and treatment of dental caries
【著者】laserqa