Is the ethereal drum Confucianism and Chinese mathematics a family?

Yes, Ruru and Huashu are a family, because a brand of Huashu is one of the important platforms of Ru Ru Musical Instrument Co., Ltd., which can be said to be a sub-brand, that is, Huashu is a small brand, then Ru Ru is a big company, and Huashu is a sub-brand of Ru Ru.

Then, some of their musical instruments are sold through the * * * channel, because they are all the same company, so Ruru and Huashu are the same company, and Ru Ru is also the most famous and largest professional manufacturer in China, and then there are many copyright and patent applications.

And it has also achieved the leading position in related fields. Therefore, Ru Ru and Huashu belong to the same family, and Huashu is a sub-brand of Ru Ru.