... types:VerticalStructure:A-style is made up of bottle valve and steel body.Body has handhole(or manhole) for ... and examination.And bottle valve set up inlet/outlet valve,safety valve,pressure gauge and pressure gauge valve,drain valve etc.HorizontalB-style is ... and repair set in end,inlet/outlet valve,safety valve,pressure gauge and pressure gauge valve,drain valve,installation seat etc.Order Notice:1) ...