As the most experienced technical engineer in Thunder Laser, Tom has helped lots of customers to fix their machine troubles. Besides, he isworking hard to learn more about laser tech and do after sales job, no matter it’s daytime or night, weekdays or weekend. Thus he wins very good reputation from all of us. As you can see from our company website, most of the technical information and documents were collected and organized by him. If you have any laser problem, don’t hesitate, just contact Tom at tech@thunderlaser.com