1)Waterfast and lightfast 2)Weter-based ink 3)C,M,Y,K,LC,LM,G,O,LK, ... nozzles2)full compatible with Epson, Canon, HP, and Lexmark3)Water-based inks are factory directly sell4) ... ,waterproofness, temperature resistance, aberration resistance, colorimeter purity and some other aspect.9)Prefect flowing property.10)Vivid ... production environment,premium service, innovative R&D and stringent quality control.