Recently, the complete set of equipment for the external pipeline natural gas pressure reduction station system of a Sinopec Guangdong integrated refining and chemical project designed and produced by our company has been installed and debugged, and has been successfully put into use. This equipment includes primary and secondary pressure reducing facilities, each of which includes a monitoring pressure regulating valve, an overpressure shut-off valve, and a main pressure regulating valve. It consists of 13 pry blocks in total.