I started to cooperate with zhengdongming through a friend's introduction. Before that, there was a big Australian customer who had a very high demand for products. After seeing many manufacturers, I was not very satisfied. I inadvertently talked to my friend about this and asked me to try it. I said that he is very happy with zhengdongming's cooperation now, and I went with the attitude of dead horse as a live horse doctor. I didn't expect that It's just like that. Ha ha. Since then, we have been cooperating, we are the most sincere partner.