Which is better, the fifth smelting or the nineteenth smelting?

Both companies are very good, both of which are subsidiaries of MCC. The 19th Metallurgical Company of China was established in June 1966, 1. China MCC, a subsidiary of China Minmetals Corporation, is the only large-scale comprehensive construction enterprise that independently and continuously undertakes the whole process of metallurgical engineering construction. You can go to the 19th Metallurgical Company in official website to see the company's general situation, news trends and other columns for information.