... ,Best after-sale,Powerful function,Easily use CNC Plasma and Gas Cutting Control System (Model: SH-2012AH-QG) Designer, ... or other languages menu, easy to operate. Installation dimensions and external interfaces compatible with the SH-2002AH digital control ... , wiring, improve system reliability. 4 relay functions are: gas and preheat oxygen or to increase control; cutting oxygen or plasma ...