... to user's requirements, we can product different precision filter elements.3 Filtering precision has 5μ, 20μm, 50 ... cabinets and devices (used in residential quarter, community, gas pipeline network, direct-fired equipment etc.) 2.5 Pressure regulator station ... include pressure regulator, steel flange, Stop Valve, ball valve, Filter, insulating joint, regulator station etc. Our company was established ...