According to the usual trademark registration regulations, the prerequisite for trademark registration application is that the trademark must have been used in the actual market and have a certain sales volume. Therefore, sales volume is required before a trademark can be registered and can be included as part of the trademark registration application.

Specifically, trademark registration applications usually require evidence of trademark use, including but not limited to sales records, invoices, advertising materials, etc. This evidence is used to prove that the trademark has been used in the market and has a certain sales volume. There is no specific requirement for the size of the sales volume, but it needs to be sufficient to prove the actual use of the trademark.

It should be noted that the main purpose of trademark registration is to protect the rights and interests of the trademark owner and prevent others from using the same or similar trademark on the same or similar goods or services, causing confusion. Therefore, the key to trademark registration lies in the legality and uniqueness of the trademark, and sales volume serves as auxiliary evidence for trademark registration to prove the actual use of the trademark.

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