Generally speaking, most people engaged in this major are specialized in metal anticorrosion, chemical engineering, chemical materials and so on. After work, you can apply for engineer qualification based on your working years and working ability. Changan Automobile can apply for "Painting Engineer of Bingzhuang Group" and Changhe Automobile can apply for "Painting Engineer of China No.2 Aviation Group" (Changan belongs to Bingzhuang Group). When applying, you must first pass the "National English Test for Professional Titles" and get a certificate. Then write a paper. Some units have more formal thesis defense, which requires full preparation and sometimes a little money. But the harvest is considerable ~ ~
Brother, if you want to declare, come on, good luck ~ ~