I’m sure you can find some Chinese company selling them, but there’s no point: the Gutmann method is designed for hardware that hasn’t been made in the past 30 years. With modern hardware, a simple zero-wipe will stop anyone short of a three-letter agency, and even waving a degaussing wand over it will stop most attackers.

Yes. These hardware devices are called “computers”. They run software that use the Gutmann algorithm to erase the contents of a hdd.

Today hdds are more likely to be physically shredded in order to destroy the data on them. Faster and less labor intensive and less likely to be used wrong.