What are the larger manufacturers of general-purpose UV flat-panel printers in Longgang District, Shenzhen?

The larger Longgang District should be in South China City. Before, my friend had learned about the process area that needed UV printer. Longgang has been to several companies, some of which are too small and few people. I guess the after-sales service is not good. The one in South China called Shen Guanglian is quite good. The store has three floors, its own factory and after-sales team, and the sister-in-law at the front desk is very beautiful ~ (~ ▽ ▽) ~ (~ ▽) ~