The comparison of 4W 638nm and 4W 637nm
Dear friend,
Nice day!
I'm Ellen from Laserwave, I would like to share the comparison of 4W 638nm and 4W 637nm with you.
Can you guess out which one is 4W 638nm and which one is 4W 637nm?
Viewing from the aspect of price, stability, efficiency, and difficulty of repairing, 638nm is absolutely your good choice. More info. pls visit:
http://www.laser-wave.net and http://www.laserwavelaserparts.com
If you interested in any items, pls contact with us at: salesteam2@laser-wave.com / marketing@laser-wave.com
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