Unlike the use of any prior line drawing work, it makes an efficient job to make ultra clear and fine line indication with a economy red line laser alignment. Being made with a qualified glass coated lens or separate crystal lens within 10 to 110 degree, it enables ultra fine and straight red line projection within 0.5 meter to 6 meters. After its proper installation within 3 meters, it brings users the easiest reaching and the longest lasting red line indication for those of industrial and high tech work fields effectively.
https://www.berlinlasers.com/economy-red-line-projecting-laser-alignment
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