1. Some "black-hearted" sellers are made of inferior materials. For example, the table tennis bat itself has a bad smell and feels bad. It is best not to buy it, and not to be greedy and cheap.
2. Counterfeit products are generally made of carbon fiber cloth, and the density and purity are quite different from those of regular products, so the price is cheap.
3. Individual merchants will combine the bottom plate of table tennis bat with rubber to deceive consumers.