I live in Balikpapan, Borneo can a travel agent in Balikpapan apply for my family's visa to China?

We will be unable to apply for the L type in person as my husband and I both work so we are hoping that we can get in-touch with a travel agent here in Balikpapan to do the application on our behalf. Any advise that you can give would be greatly appreciated.
Thanks!!!