Generally speaking, the higher the grams of paper, the thicker and denser it is, that is, the better the quality.
This gram of paper will not change with the size of the paper. Once the paper you use is determined, no matter how big it is, it will not change because it is based on zero paper weight.
"157g paper" is a kind of thick paper used in daily work and study, which means the paper weight of 841mm×1189mm 157g. Most ordinary A4 paper on the market is 70g, 75g or 80g, which is 157g.
"157g paper" is often used as the cover of university graduation thesis.
At present, there are 17, 25, 40, 52, 60, 70, 80, 100, 105, 128, 157, 180 in China.