Volvo Crawler Excavators vs SCHAFER Crawler Excavators which is better

Volvo Crawler Excavators and SCHAFER Crawler Excavators Which one is better? What is the difference between Volvo Crawler Excavators and SCHAFER 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,SCHAFER TB 250 ZW Rail-Road Excavators,SCHAFER TB 216 SH Hybrid Excavator,SCHAFER TB 210 RH Hybrid Excavator performance characteristics and detailed parameter configuration for the majority of netizens to refer to, understand Volvo Crawler Excavators and SCHAFER Crawler Excavators Which is better, please pay attention to global-ce.