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SN74LVC1G17DRYR bought from website, DC 2028 being oxidized

Order number#T01297077

Bought from website, the DC of we got is 2028, totally 25196PCS ,but the colour of the part seems being oxidized. Please see the photo as attached.
Compared with the sample DC1923 we bought before, it is really different. Please check and reply to us, thanks.