"2009 the after-sales service department is set up, and a large after-sales service team has been established to provide direct services to users. it also promises to the society that after-sales service personnel will ensure that users within 100 kilometers will arrive at the site within 12 hours, and users within 500 kilometers will arrive at the site within 24 hours, and within 1,000 kilometers will arrive at the site within 48 hours, and boiler quality problems will be solved as soon as possible to truly solve users’ worries and problems. Joyside computer network
