for more info of laser machine, pls contact:
Email: yoyo@goldenlaser.org
Web: www.goldenlaser.com.cn
TouTube: http://www.youtube.com/user/Goldenlaservideo
Golden Laser -- a professional manufacturer of Laser Cutting Machines, Laser Engraving Machines, Laser Marking Machines, Laser Welding Machines, etc.