1. Tightness Good: cartridges are used ultrasonic welding equipment of U.S. imports made to ensure the cartridge shell completely sealed and will not appear Loumo, color mixing phenomenon. 2. Do not plug the print head: All materials have to undergo a rigorous pre-production ultra-purification treatment, each working procedure are standard in the ultra-clean workshop conducted to eliminate the dust into the cartridge because of the outside world caused by clogging phenomenon; In addition, the ink in the irrigation After pre-loaded 1um, 0.5um, 0.2 um of three strict filtering, which completely eliminated the phenomenon of clogging print head. 3. Stability: poly-US high-quality environmentally friendly ink cartridges ink, ink with a non-degenerate, non-precipitation and difficult to fade characteristics, chemical properties and stability. 4. Colors natural, lifelike: the ink cartridges used by different types of printers based on ink-jet type characteristics through the corresponding adjustment of the composition and color processing technology and strict scientific refining; cartridge filling equipment, common use of German art in a vacuum state, accurate filling, in order to ensure brilliant color printing for each product, realistic. 5. Compatibility well: used ink cartridges for the physical and chemical properties of a rigorous testing, analysis and research, its physical and chemical indicators and more into the original color ink cartridge with ink and the original 100% compatibility, guaranteed spray out of dots is always rounded, uniform and clear. 6. Ink capacity of more than: German professional inkjet cartridges using sponge, this sponge has a balance of hydrophilic and excellent ink absorption properties, to achieve a high level of absorption, storage and control ink ink flow rate and flow to ensure sufficient capacity ink, out of ink smooth. 7. Long shelf life: the ink cartridges used with a very strong chemical stability, processing cartridges are completely sterile, constant temperature environment, thus effectively guarantee to maintain a view of the ink cartridges for more than two years