850mm 40w SPT laser tube+40w power supply for Julong Gweike Golden laser machine - AliExpress
Amazon.com: Cloudray 40W Laser Power Supply for CO2 Laser Engravers, Laser Engraver Power Supply 110V/220V Power Supply Replacement for 30W 40W Laser Tube Laser Engraving Machines(Model B) : Arts, Crafts & Sewing
CO2 Laser Cutting & Engraving Machine Malaysia by EzLaser.my