Metallurgical industry refers to the mining, selection, sintering of metal ores and smelting, processing into metal materials of the industrial sector. The metallurgical industry can be divided into ferrous metallurgical industry (i.e. steel industry) and non-ferrous metallurgical industry. Non-ferrous metallurgy industry is the production of non-ferrous metal refining industry, such as copper industry, aluminum industry, lead and zinc industry, nickel and cobalt industry, tin industry, precious metal industry, rare metal industry and other sectors. Metallurgical industry is one of the oldest industries in human history, and it is also the pillar industry of China's national economic construction.

1) Wired transmission: The gas controller can output RS485 signals, which are converted into RS232 signals by the converter and transmitted to the computer terminal.

2) Wireless transmission: The gas controller can wirelessly transmit the collected signal to the computer terminal through the Internet network.