The industrial doctorate distinction in the PhD certificate is obtained when the appropriate requirements are met. This is just a distinction in the certificate, and does not imply any funding.
The Generalitat's industrial doctorate program is a joint funding program between the university and companies. Doctoral students enrolled in this funding program can apply at the end of their doctorate to have an industrial doctorate distinction in their certificate.
In addition, there are other industrial doctorate funding programs from the ministry and the European Union, which also give the right to industrial distinction in the PhD certificate.