The video shows Raytu H series 3kw metal laser cutting machine cut 10mm thickness copper sheet, the kerf is smooth without burr. Please contact [email protected] for more info about copper cutting. #coppercuttingmachine #copperlasercutter #copperlasercuttingmachine #coppercut #coppercutter #Raytulaser #fiberlasercuttingmachine #metallasercuttingmachine source