What does Shanghai Yiyun network technology call for?

I'm calling to promote business. Shanghai Yiyun Network Technology Company has cooperative relations with other companies, such as Tik Tok. By calling, we will introduce the promoted products and services to potential customers by phone, and strive to promote sales. Shanghai Yiyun Network Technology Co., Ltd. was established on February 4, 20 13. The legal representative is Liming, and the company's business scope includes: technology development, technology consultation, technology transfer and technical services in the field of network technology and computer technology.