Products offered by Topstuff come with the supplier/manufacturers warranty. This is usually a 12 month RTB warranty unless otherwise specified. The warranty does not cover faults caused by misuse, wear and tear or negligence. Generators have a 12 month or 200hrs (whichever comes first) warranty.
Metabo tools come with a 12 month warranty which can be extended to 3 years by registering your tool online within 4 weeks of purchase. You can register your tool here... https://www.metabo-service.com/en/register/
Any warranty assessment/repair will be carried out by the suppliers chosen service agent.