nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpq0v5ltvj87flrs0e659hrpapal7ksupwhfxx5nsr0q86mclczuuzqd2t4tm yes! polyester is a category of polymers (plastics) that contain 1-2 ester in each part of the main chain, meaning there are many types of polyester some of them can be made into fibers ...