How many listed companies are there in the pipeline industry?

Listed companies in the pipeline industry are as follows:

000055 Fangda Group

000509 stainless steel Huasu

0006 19 Conch Profile

000639 Wang Xi gourmet

000703 Hengyi Petrochemical

000786 Bei new building materials

002080 Sinoma Technology

002 108 Cangzhou pearl

002 135 southeast grid structure

A listed company refers to a joint stock limited company whose shares are listed and traded on the stock exchange with the approval of the securities administration department authorized by the State Council or the State Council. The so-called unlisted company refers to a joint stock limited company whose shares are not listed and traded on the stock exchange. A listed company is a joint stock limited company, which must meet certain conditions besides being approved to be listed and traded on the stock exchange. After the revision of the Company Law and the Securities Law, more enterprises will become listed companies and companies whose corporate bonds are listed and traded.