XGMA Bulldozer vs SEM Bulldozer

XGMA Bulldozer and SEM Bulldozer Which one is better? What is the difference between XGMA Bulldozer and SEM Bulldozer which is of good quality, the editor learned through comparative analysis XGMA XG4161L Bulldozer,XGMA XG4161F Sanitation bulldozer,XGMA XG4221S Wetland type bulldozer,XGMA XG4321L Track-type tractor,XGMA XG4221T Bulldozer (logging type),SEM Track Type Tractor SEM816D,SEM822D Track Type Tractor,SEM822LGP Track Type Tractor Bulldozer,SEM822 Track Type Tractor Bulldozer performance characteristics and detailed parameter configuration for the majority of netizens to refer to, understand XGMA Bulldozer and SEM Bulldozer Which is better, please pay attention to global-ce.