How do I find a reliable Gearboxes manufacturer?

When sourcing a reliable gearboxes manufacturer, first compare product range, factory capability, quality system, proven cases, sample quality, lead time, and after-sales support. Do not compare price quotations alone. It is recommended to request company profiles, product specifications, inspection documents, and samples from the supplier, and further verify through video factory audit, third-party factory audit, or on-site visit.