In various high precision line aligning work fields, in order to get clear and fine enough line alignment at long work distance and other hard reaching places, it is operating easy and conveniently with the assistance of a 445nm blue laser line generator. It is emitting formal brightness blue laser light directly from a 445nm blue laser diode. In various high tech and industrial precise line aligning work fields, being made with the best quality glass coated lens with wide range fan angles and

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