... -electric print heads For ZUND,FXPW,DOSUN,A'ex Screen,CST,TOSHION Color: Black Detailed Product DescriptionInkjet Screen Engraver Ink Printer Model ... :For piezo-electric print headsFor ZUND,FXPW,DOSUN,A'ex ... : Once opened, sealed,keep away from sunshine,under5-25°C for 90 days