crwdns2935425:01crwdne2935425:0
crwdns2931653:01crwdne2931653:0
Crack appears
-
Crack appears due to a stress concentration which you cannot decrease due to a strong spring at the back.
crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0