Producing
Well, Terminal, Storage tank
Flow Chat of Natural Gas Transmission & Distributing system
Producing
Well, Terminal, Storage tank
High
Press. Transmission & Distributing System
Fire
power Plant and Heavy Industry
Sub
High Press. Distributing System
General
Industry 
Markets......
Meddle
Press. Distributing System
Public Zone
Commercial Building,
Sub.
Middle Press. Distributing System
Shopping
Mall,
School, Community….
High
Press. Pipeline
Middle
Press. Pipeline
Low
Press. Pipeline
Low
press. Distributing System
Metering
Station
High
Density Community
Regulating Station Low Density Community
◎ Some area can be dual pressure distributing system。