1. Brand reputation: China Gold is the largest gold refiner and seller in China, with a national brand and extensive distribution network. Zhou Shengsheng is a famous jewelry brand in Hongkong, which is famous for its high quality and exquisite design.

2. Quality assurance: China Gold's gold jewelry, gold bars and other products have passed strict quality inspection and meet national standards. Zhou Shengsheng's jewelry raw materials are purchased, designed and produced under the supervision of its own factory, and there is no OEM from other factories, so the gold jewelry produced has better color and no adulteration.

3. Design style: China Gold's product design style is traditional and classic, suitable for consumers of different ages. Zhou Shengsheng's jewelry design style is more fashionable and personalized, which meets the aesthetic needs of modern consumers.

4. After-sales service: Both China Gold and Zhou Shengsheng provide perfect after-sales service, including repair, maintenance, return and exchange, etc.