... sk4 solvent ink 1,original UD sk-4 ink 2,suitable for different brand SPT510 printers 3,durable, beautifull color,smoot solvent ... printing ink Phaeton sk-4 series ink for UD ... InkPackage: 1,5L/bottle ,standard carton,2,Operational Specification: 3,Temperature: 18to30/64to86 4,Relative Humidity: 25to60% Non-condensing ...