1、Professional technical person here standby provide free consultancy for the customers (preparation works before installation)；

2、Operating training goes at customers^，factory from our professional technical person for free；

3、Installation and debugging is taken charge by  professional technical person of DOSUN in customers^，factory；

4、Installation on the phone or house call in 24 hours  (48 hours on holiday) when machine meets problem；

5、We have one-year warranty, and life service, paid service after one year；

6、Providing free upgrade only charge for hardware costs.