Could this indicate a future crack on the frame?

erick313

New User
Hey, so I ended up getting a second hand Ezone 100 and it arrived today. I took a closer look on the racket, few normal chips and it looks in order with the exception of, on the top, some lines that I dont know if this could be an indication of crack, maybe bad string service. I passed the finger on it and cannot feel anything, but kinda worried about it, specially on the place they are.

Here are the images of it, together with a full video of the racket:


Thanks in advance!!!
 
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