LMZ10500: LMZ10500SILR product silk screen printing is inconsistent with the specification

Hello, LMZ10500SILR, the silk screen of the physical object is inconsistent with the silk screen of the specification (please see the attached picture description),Is this normal?thank you!

marking On DATESHEET: 0500 9821 DH ,Material device marking: 0500 421A DH

Taylor：

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