About multipart/form-data?

Question

Is there another multipart/form-data like enctype but not form-data?

EDIT

Especially,what others are used in web applications?

Answer 1

multipart/byteranges is used for partial data.
However this is typically used in the Server -> Client direction (whereby form-data is in the other direction). The "Form submitting" tag and other hints in the question indicate that this may not be the kind of encoding the OP is looking for.

other multipart subtypes include

• multipart/mixed
• multipart/alternative
• multipart/parallel

Which too would be more likely (but not necessarily) used in the context of server responses rather that of client requests.

Here is a more comprehensive list of MIME multipart subtypes from Wikipedia