The trademarks belong to different countries and their business scopes are different.
1. The trademarks belong to different brands: Shanghai Queyou Mahjong machine is produced by Shanghai Queyou Mechanical and Electrical Equipment Co., Ltd., while Queyou Mahjong machine is produced by Songgang Mechanical and Electrical Co., Ltd.
2. Different business scopes: Shanghai Queyou Mechanical and Electrical Equipment Co., Ltd.’s main business scope is sporting goods, electromechanical equipment, etc., while Songgang Mechanical and Electrical Co., Ltd. mainly operates automatic mahjong machines.