Each frame to doors fitted with a mortice lock is to be slotted for bolt, correctly positioned and to have a mortice cap welded on at back of perforation.
为匹配安装暗锁的门，每
框要为锁舌开槽，通过在
孔，在槽内焊接榫帽，使正确就位。
Each frame to doors fitted with a mortice lock is to be slotted for bolt, correctly positioned and to have a mortice cap welded on at back of perforation.
为匹配安装暗锁的门，每框要为锁舌开槽，通过在孔，在槽内焊接榫帽，使正确就位。
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