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Unlike the use of any prior line drawing or printing work, Berlinlasers 445nm blue line laser module makes a good job for surveying and geology works. It is featured by highly straight, fine, and bright blue reference line projection within 0.5 meter to 6 meters, allowing for freely adjusted laser line thickness. It provides engineers excellent line alignment source for topographic scanning, tunnel/ Contour measurement for pipeline inspection, stable over long distances.
https://www.berlinlasers.com/445nm-50mw-80mw-100mw-blue-line-laser-module
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