888A-2 Dual-tongue
internal& external cross lock
888A-5-02 Three-direction four-tongue
nternal& external quantum lock
888A-6-04 Three-direction five tongue
internall& external quentum lock
888A-6-03 Tri-direction five tongue
internall& external cross lock
888A-7-02Dual-tongue internal&externalcorss lock
888A-6-02 Three-direction five tongue internal&external quentum lock
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888A-6-04 Three-direction five tongue
