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.

安装暗锁的门，每个框要锁舌开槽，通过在其后打孔，在槽焊接榫帽，使其正确位。

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，每个框要为锁舌开槽，通过在其后打孔，在槽内焊接，其正确位。

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，每个框要为锁舌开，在其后打孔，在内焊接榫帽，使其正确位。

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，每个框要为锁舌开，通过其后打，内焊接榫帽，使其正确位。

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，框要为锁舌开槽，通在其后打孔，在槽内焊接榫帽，使其正确位。

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.

为匹配安的门，每个框要为舌开槽，通过在后打孔，在槽内焊接榫帽，使正确位。

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，每个框要为锁舌开槽，通过在孔，在槽内焊接榫帽，使正确位。

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，每个框要为锁舌开，通过其后打孔，焊接榫帽，使其正确位。

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.

为匹配锁的门，每个框要为锁舌开槽，通过在后打孔，在槽内焊接榫帽，使正确位。