Injection-molded plastic parts, automotive brackets, or industrial tools have cavity identifiers.
In software development, test data sometimes leaks. dwi211eti
Embedded systems often embed build strings in hex or modified Base32. dwi211eti — if converted from hex pairs (dw i2 11 et i?) does not yield obvious ASCII, but reversing or ROT13 might give internal build names. Injection-molded plastic parts