In May 2018, we took part in the international oil and Gas Exhibition (OTC), which was opened in Houston, USA. This is the second time after our first participation in the OTC exhibition in 2017. This exhibition is much superior to 2017. In the course of the exhibition, we saw many old friends who had long worked together. Some new friends with intention to cooperate. In this exhibition, our company has a rich harvest and a cooperative intention with some customers. It has played a role in publicizing the brand of our company and expanding the reputation of the company. It has laid the foundation for our company to gradually achieve the goal of bigger and stronger.