SEM Road Roller vs Ammann Road Roller which is better

SEM Road Roller and Ammann Road Roller Which one is better? What is the difference between SEM Road Roller and Ammann 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,Ammann ART 240 TIER 4fPNEUMATIC ROLLERS,Ammann AP 240 TIER 3PNEUMATIC ROLLERS,Ammann ART 280 Tier 3PNEUMATIC ROLLERS,Ammann ART 280 Tier 4fPNEUMATIC ROLLERS,Ammann AV 130 X TIER 3TANDEM ROLLERS performance characteristics and detailed parameter configuration for the majority of netizens to refer to, understand SEM Road Roller and Ammann Road Roller Which is better, please pay attention to global-ce.