1. Employment training: Many plastic processing enterprises will provide training for adjustment technicians, and you can get opportunities for learning and practice by applying for jobs in these enterprises.

2. Vocational training institutions: Vocational training institutions also provide training courses for plastic adjustment technicians, which usually include knowledge and skills in plastic raw materials, plastic technology and adjustment technology.

3. Online courses: There are some online learning websites with corresponding teaching videos, and you can learn according to these videos.