The industry involves: 

 Supercritical and supercritical unit boiler heating, boiler water supply, boiler sewage discharge, steam engine system, water treatment, superheated steam transmission, temperature reduction and pressure reduction, etc. 

 Application product type: 

 Medium/high pressure regulating valve; medium/high pressure hard sealed cut-off ball valve; axial flow multi-stage step-down regulating valve; maze-type multi-stage step-down regulating valve; eccentric rotary regulating valve; gate valve; three-eccentric butterfly valve, etc.