Sydney paper is also called copy paper. Copy paper is a kind of high-end cultural and industrial paper that is very difficult to produce. Copy paper is famous for being used to wrap Sydney. It is thin, flexible and plastic, translucent, smooth and delicate. Most of them are not waterproof. Of course, there are also waterproof Sydney papers on the market. Copy paper is a kind of high-end cultural and industrial paper that is very difficult to produce. Its main technical characteristics are: high physical strength, excellent uniformity and transparency, and good surface properties, which are fine, flat, smooth, and bubble-free. Sand, good printability.