Three, with multiple security and self-locking function, do not need any other door equipment.

具有多重安全保障及自锁功能，无需别家任何栓门器材。

youdao

Three, with multiple security and self-locking function, do not need any other door equipment.

具有多重安全保障及自锁功能，无需别家任何栓门器材。

youdao