Can a flat-rate invoice be used for invoices issued for the retail sale of medical equipment.

Medical devices are issued with VAT invoices, which should have the invoice stamp of the seller of the medical device, and the type of medical device should be stated on it.

Fixed-price invoices are unreliable and do not indicate the name and type of medical device.

Medical equipment, in addition to the invoice, in fact, there is a warranty card or something, take the warranty card to the merchant to go to the warranty, to the manufacturer of some manufacturers can also warranty.