pneumatic diaphragm actuated JIS/ANSI/GB valves STV STV VALVE Co.,Ltd Standard or Nonstandard: StandardStructure: DiaphragmPressure: Medium PressurePower: PneumaticMaterial: Stainless SteelTemperature of Media: Normal Temperature pneumatic diaphragm actuated jis/ansi/gb valvespneumatic diaphragm control valve รายละเอียด ติดต่อ