弹簧门 meaning in English

double-acting door
spring-loaded door
swing door

Building hardware ; spring hinges for doors , double action
建筑五金.双动门用弹簧门枢
Building hardware ; spring hinges for doors , single action
建筑五金.单动门用弹簧门枢
Standard test methods for detention locks for swinging doors
双开式弹簧门安全锁的标准试验方法
Aluminum alloy doors with floor closer
铝合金地弹簧门
Standard test methods for detention hinges used on detention - grade swinging doors
安全等级双开式弹簧门用安全铰链的标准试验方法

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