SEM Road Roller vs HAMM Road Roller which is better

SEM Road Roller and HAMM Road Roller Which one is better? What is the difference between SEM Road Roller and HAMM Road Roller which is of good quality, the editor learned through comparative analysis SEM512 Soil Compactor Roller,SEM510 Soil Compactor Roller,SEM522 Soil Compactor Roller,SEM520 Soil Compactor Roller,SEM518 Soil Compactor Roller,HAMM HD+ 140 VO Tandem rollers,HAMM HD+ 140 VV Tandem rollers,HAMM HD+ 120 VO Tandem rollers,HAMM HD+ 120 VV Tandem rollers,HAMM HD+ 110 VO Tandem rollers performance characteristics and detailed parameter configuration for the majority of netizens to refer to, understand SEM Road Roller and HAMM Road Roller Which is better, please pay attention to global-ce.