More info here:

http://www.40percent.club/2018/11/arduino-six.html

How to order PCBs from gerber files

EasyEDA ordering info:

Arduino Six

Gerber: arduino_six.zip

Layers:2 
Dimension: 95mm*62mm 
PCB Qty:10 
PCB Thickness:1.6 
PCB Color:Green 
Surface Finish:HASL(with lead) 
Copper Weight:1

Files released under https://creativecommons.org/licenses/by-nc-sa/4.0/