After Serive products manual & after service manual for each model
Before-sales support: Help customer designing item in reasonable, make our product to satisfy with customer demanding.
After-sales support:
1,Install the POS system for customer if in need.
2,Technical support any time
3,Service parts supplied in 3 years, 1 year as free for spare parts
4,Customer service and maintenance
5 . Repair replacement and compensation of faulty products
6,Consulting,collecting feedback and resolving problem and improving model immediately