This work surface is simple, the actual is very complex, you buy products, to find those who understand to help you with product inspection, know what material it is, size, weight, product density, and even zipper is what type to know, I have done some products, the whole product is good, is the zipper quality is poor, pull dozens of times after the card master, so there are a lot of details, if you do not understand the people to help you, can only get a general understanding of their situation. In addition before and after the purchase, non-stop communication with middlemen to understand their material size, it is best for you to find a few more accounts and each other to communicate, do not use your common account to communicate with him, because when your name into their systems, the factory knows you are his customers, the factory is not willing to contact you, you can only always contact with middlemen. In addition, the general average customer will not ask about product data these things, so you find a few people to ask about some products, and then the data into a complete combination, so that you generally understand the product situation, will not be very different
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