Engineers go abroad for installation, teaching and maintenance. Q: How long is the quality guarantee period? Our quality guarantee period is 12 months. We also have other related products. If you need and have any questions, please contact me at anytime.Send...
A4: We offer a two-year warranty. In warranty, we will provide the broken items free of charge. Beyond the warranty period, we still provide maintenance service. Q5: Why should you buy from us not from other suppliers? A5: We focus on las...