Teacher:In this task, you are given a question. You have to answer the question based on your information.
Teacher: Now, understand the problem? Solve this instance: Carborundum printmaking is a collagraph printmaking technique in which the image is created by adding light passages to a dark field, normally, cardboard or wood plates are coated in a layer of Silicon carbide (SiC), also known as carborundum, is a compound of silicon and carbon, synthetic silicon carbide powder has been mass-produced since which year?
Student:
1893