Volvo Crawler Excavators vs CASE Crawler Excavators which is better

Volvo Crawler Excavators and CASE Crawler Excavators Which one is better? What is the difference between Volvo Crawler Excavators and CASE Crawler Excavators which is of good quality, the editor learned through comparative analysis Volvo MEDIUM CRAWLER EXCAVATOR EC220EL,Volvo Crawler Excavator EC120D,Volvo Crawler Excavator EC140DL,Volvo Crawler Excavator EC170D,Volvo Crawler Excavator ec210d t3,CASE CX750D FULL SIZE EXCAVATOR,CASE CX500D ME FULL SIZE EXCAVATOR,CASE CX490D FULL SIZE EXCAVATOR,CASE CX350D FULL SIZE EXCAVATOR,CASE CX300D FULL SIZE EXCAVATOR performance characteristics and detailed parameter configuration for the majority of netizens to refer to, understand Volvo Crawler Excavators and CASE Crawler Excavators Which is better, please pay attention to global-ce.