As the five regional operation centers of the Group have been put into operation and domestic provincial companies gradually established, the six series of road special equipment products of Well Road have gradually been entrusted to regional agent the regional after-sales service through the operation centers or provincial companies. Hence, Well Road will train after-sales service engineers for each operation center and provincial companies according to the principle of "standard, professional,capable and efficient", and we try to do a training in rotation for after-sales service engineers according to the innovation progress of all kinds of equipment.