... delivery& wholesale price 4.OEM offer GYD20-20 Pneumatic Pressure Switch IntroductionAfter the motor runs,the press ure is produced ... and exporting low voltage electricity, including ac contactor, air pressure switch, magnetic starter, motor protector, starter delta starter, oil ... as below:Yueqing Weihe Electric Co., Ltd.ADD: Lvao Industrial Zone, North Liu Shi Town,Yueqing City, Zhejiang Province, ...