we have our own ink producing workshop, main materials are from Germany and USA. We understand the request of ink for these inkjet cartridges , CISS and inkjet refill kits well . We can guarantee our ink can be top quality , real color , long lasting time in the paper , clear printing results, as : 1. tall analytic degree, bright and lustrous and gorgeous, the result is lifelike. 2. dense quality good, print clear word and spread, The good one is able to bear water, able to bear the light, able to bear and applied and wiped firm degree. 3. quick drying 4. exceed slight small and roundest things, as footpath of ink of all kinds between 00.08~0.2 ums, do not stop up the spray nozzle. 5. have no corrosively nonpoisonous, have no irritating to the skin. 6. chemical nature is steady, the storing nature is good, and the chemical change does not take place or breed. 7. gentle fragrant smell, there is not unusually amazing smell.