MP5087GG-Z quality confirmation?

Hi,
My name is Samy from Magen Lab,
We are an independent test lab ISO/IEC 17025 certified for AS6081 counterfeit avoidance method,
We received part MP5087GG-Z from our customer for testing,

During the Solvent Test for Re-Surfacing (SAE AS6081 4.2.6.4.3 A / 4.2.6.4.3 B) test step, we found Blacktopping and Marking was removed, however no scratches, sanding marks or sign of remarking was observed,
We need to know if it is a normal result in this test?

We need a confirmation from the manufacturer that this finding is correct or any documentation that explain this finding?
Thank you for your support,
Samy

Hi,
Can you also confirm the top marking devices?

Line 1: BDG

Line 2: 137

Thank you for your support?

Samy