@cklaserjackychiang: Laser engraving is available for tumblers, mugs and vacuum cups. Processing result is clean, fast and high-precision, with 3D engraving supported for curved surfaces. Welcome to discuss more machine details via WhatsApp / WeChat +86 13926292010 or visiting website www.cklaser-gz.com / www.cklasermachine.com. #LaserEngraving #CupEngraving #MugEngraving #TumblerEngraving #CustomMugs #CustomTumblers