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，通过在其后打孔，在槽内焊接榫帽，使其正确就位。

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，通过在其后打孔，在槽内焊接榫帽，使其正确就位。

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，通过在其后打孔，在槽内焊接榫帽，使其正确就位。

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.

为匹配安装暗的门，每框要为舌开槽，通过在其后打孔，在槽内焊接榫帽，使其正确就位。

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，通过在其后打孔，在槽内焊接帽，使其正确就位。

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.

为装暗锁的门，每框要为锁舌开，在其后打孔，在内焊接榫帽，使其正确就位。

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.

匹配安装暗锁，锁舌开槽，通过在其后打孔，在槽内焊接榫帽，使其正确就位。

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，通过在其后打孔，在槽内焊接榫帽，使其正确就位。

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，通过在后打孔，在槽内焊接榫帽，确就位。