What is 53C 54C 55C in abrasives?
53C 54C 55C such sayings will be seen in mails if you work in abrasives field,most from russian cusotmers.
Then what product do they mean?
53C 54C 55C means black carborundum,which is mainly produced in China,including many different sizes,mainly used in sandblasting,grinding,lapping,abrasive tools, coating etc