Ammann Road Roller vs HAMM Road Roller which is better

Ammann Road Roller and HAMM Road Roller Which one is better? What is the difference between Ammann Road Roller and HAMM Road Roller which is of good quality, the editor learned through comparative analysis 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,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 Ammann Road Roller and HAMM Road Roller Which is better, please pay attention to global-ce.