If users are getting serious need of highly precise and fine line measurement, a lot of users would prefer to use of a high brightness 532nm green line laser alignment within 5mW to 100mW. It projects highly visible green laser beam and high linear quality green line from a qualified glass coated lens or separate crystal lens. Available with wide fan angles of 10 to 110 degree, after proper installation and freely adjusted laser line fineness, it enables increasing accuracy and brightness green line projection for multiple fields, including laser cutting, saw milling, lumber machine, laser car wheel alignment and high tech work etc.
https://www.berlinlasers.com/532nm-green-line-projecting-laser-alignment
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