The article sounds to me like they were selling hardware, not providing a service.

Checking their website confirms this is what they usually offer.

Wiwynn may be unique in the market with its ability to provide solutions all the way up to L11 rack integration services – from the board, to the system to the complete rack. Wiwynn has the facilities to deliver systems that have been tested and validated prior to shipping, reducing the amount of time that customers need to spend to assemble, test, and validate prior to a rack installation going live.