1. Upgrade the hydraulic system;
2. Upgrade the hopper and Three-way system;
3. Upgrade the trailor system
4. Upgrade the slewing mechanism;
5. Upgrade the electrical system;
6. Upgrade to operation on unattended duty;
7. Make intelligent coal yard.
1. Professional technical design team;
2. Advanced manufacturing factory and complete workshop;
3. A large number of practical application cases;
4. Senior construction team;
5. Professional after-sales service team;
