The term abrasive material is identified in base64 scheme by the sequence YWJyYXNpdmUgbWF0ZXJpYWw=, while the MD5 signature is equal to f7f8e76ff315b62ed6f090d7863303a9. The ASCII encoding of abrasive material in hexadecimal notation is 6162726173697665206d6174657269616c.