Diagraph spring pneumatic brake valve is widely used as control valve for tractor - trailer braking system.
膜片弹簧式气制动阀作为控制阀已广泛地应用于拖拉机挂车制动系统。
Pneumatic-electric emergency valve has pneumatic emergency function and Electric emergency function, which can simplify DK—1 brake system and reduce trouble.
气电两用紧急阀具有气动紧急和电动紧急功能，可将DK— 1制动系统简化，减少故障发生。
DF3-W positively locked solenoid valve is exclusive pneumatic elements controlling the actions of the brake and cluth of a press.
正联锁阀 是控制压力机制动器、离合器正常工作的一种专用气动元件。
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