Buying in China is perilous for any buyer, informed or not. Once you have decided to buy from Chinese suppliers, you will have to make sure that your purchases are done correctly and that the risks are limited.
For this, you can, like many international brands (Carrefour, Maison du Monde, Habitat, etc.), rely on an agent in China with offices on site that will support and guide you so that you can focus, not on solving problems in China, but rather on making sales in your country.
The agent in China must listen to you, everything he does must be transparent with you. A plus is to propose a follow-up through an efficient computer system (ERP), customizable services and that you can prepare them together (and not through an impersonal online form).
The key is to choose the right partner in China.