The biggest obstacle for international trade, one is the trust, the second is increasingly high-tech communication although now our tools, we can through all kinds of translation software to express our words, but the real barrier is thinking of the generation gap in our communication, in fact, most of the time even if you are in English, because both sides thought is different, buyers and sellers for the same project focus is different, also can lead to cooperation in all kinds of communication disorders, the rising cost, the goods time delay and other problems This is why many companies that have not done international trade prefer to cooperate with local importers rather than Chinese terminal suppliers. That's why many large companies set up comprador offices in China