1. Single operation screen can finish working setting 2. 99 sets can be set. 10 step for each set working memories. 3. Unique sparking meter for easy working condition. 4. There are working coordinted machine coordinted, abslate coordinated. 5. Bulit-in fireproof detector. Fluid level detector. 6. Second flushing function, It's suitable deepth hole hardness flushing working. 7. Operation message area, it's show operation condition immediately. 8. Manual speed adjustable. 9. Keyboard locked function, to avoid miss touch. 10. Monitor Guard func