Petrochemical industry is an important part of the chemical industry and plays an important role in the development of the national economy. It is one of the pillar industrial sectors in our country. Petrochemical industry refers to the use of petroleum and natural gas as raw materials. The first step in production is the cracking of raw oil and gas (such as propane, gasoline, diesel, etc.). Diaphragm compressors can be used to compress various petrochemical raw materials, such as hydrogen, nitrogen, oxygen, carbon dioxide, etc., as well as for gas transportation and pressure control in the production process.