black sticker on the top of refrigerator compressor -mini fridge

Hello everyone, I just bought a new mini fridge and i see a black sticker on the compressor. when i looked on the internet, compressors do not have this sticker. Could you please tell me what this sticker is ? Thank you https://preview.redd.it/bdk8vxub0oxa1.jpg?width=4032&format=pjpg&auto=webp&s=147e81b841744ccb7b6147240cdb0ebd1f243b5a submitted by /u/Zestyclose-Prompt103 [link] [comments]