??：???? ? ???? ?? ?? ??? ???? ???? ??? ??? ????. ??? ???? ??? ? ????.

???? ? ???? ?? ?? ??? ???? ???? ??? ??? ????. ?? ??? ???? ??? ???? ??? ? ????.

1. ?? ??: ?? ?? ??? ?? ?? ??? ??? ?? ??? ???? ??? ??? ?? ??? ??? ???? ???. ?? ??, ???, ???? ?? ?? ??? ??? ??? ???? ??? ???.

2. ??: ??? ?? ??? ?? ??? ???? ???? ???. ??? ??? ??? ??? ????, ??? ??? ??? ?? ??? ???? ?? ??? ??? ??? ? ????.

3. ??? ??: ??? ??? ??? ?????. ??? ??, ??? ? ?? ??, ?? ??? ????? ???, ????? ??? ??? ???? ???? ?? ??? ?? ?? ??? ???? ? ????.

4.After-sale service: as important element of purchasing equipment, we should choose the mining equipment industry with high reputation, standardization, and scale.