Peel off the yellow tape, plug-n-go. Manufactured to ISO 9001. Long shelf life - 2 years. WF-7710DWF WF-7715DWF WF-7720DTWF. WF-7610DWF WF-7620DTWF WF-7620TWF. WF-7110DTW WF-7110TW WF-7210DTW. WF-3620DWF WF-3640DTWF WF-3640TDWF.
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