Zhen Queyou clearly identified the Queyou trademark. Queyou is a brand of Songgang Electromechanical (China) Co., Ltd. It was established in 1995 and is headquartered in Xiaoshan, Zhejiang. The Queyou logo has three similar slashes, with one in the middle. The bar is composed of a bird logo with a hollow origin, and the two characters "bird friend" (some fake ones will add the word, but the real bird friend only has two characters), the English name is TREYO, and the brand slogan is "Entertainment Home Appliances Expert".

For real Queyou, the packaging box, base, column, outer frame, suede surface, and dice tray all have the Queyou logo, and the internal base of the host machine has Queyou’s unique engraved string. code, you can see the production time, etc.

Mahjong machine was born in Japan. The veneer layer on the back of the mahjong tiles contains magnets and other things that can attract magnets. Utilizes magnetism to automatically shuffle cards.

When it was difficult to determine the origin of Mahjong, the Ningbo School adopted the technique of secretly crossing Chencang. Ningbo people, who have always been good at business, believe in the quickest, first served. While others are still arguing, the shrewd Ningbo people have quietly built a mahjong museum next to Tianyi Pavilion, saying that Ningbo is the real birthplace of mahjong.