automatic spring loaded valve 自动弹簧阀 ; 自转动簧阀

spring loaded valve 弹簧阀 ; 弹簧加载阀

Direct spring loaded safety valve 弹簧式安全阀 ; 弹簧式平安阀

spring-loaded valve nozzle 弹簧加载阀式注嘴

spring-loaded safety valve 弹簧式安全阀 ; 弹簧安全阀

spring-loaded overflow valve 弹簧溢流阀

sealed spring loaded safety valve 封闭式弹簧安全阀

spring-loaded relief valve 弹簧安全阀

spring-loaded check valve 弹簧加载止回阀 ; 弹簧止回阀