What does the after-sales service of laser machines include?

What does the after-sales service of laser machines include?

What does the after-sales service of laser machines include?
It includes a 24-hour technical consultation hotline to answer customers' operational questions and troubleshooting suggestions at any time; fast on-site repair service, in general areas, technicians will arrive at the site within 48 hours to resolve hardware failures; regular return visits to collect customer feedback and optimize subsequent services; and free software upgrades to keep equipment functions up to date.