Cat Rotary Drilling Rig vs SCMC Rotary Drilling Rig which is better

Cat Rotary Drilling Rig and SCMC Rotary Drilling Rig Which one is better? What is the difference between Cat Rotary Drilling Rig and SCMC Rotary Drilling Rig which is of good quality, the editor learned through comparative analysis Cat Rotary Drills MD6200,Cat Rotary Drills MD6640,Cat Rotary Drills MD6540C,Cat Rotary Drills MD6310,Cat Rotary Drills MD6250,SDR220/280 Rotating drill performance characteristics and detailed parameter configuration for the majority of netizens to refer to, understand Cat Rotary Drilling Rig and SCMC Rotary Drilling Rig Which is better, please pay attention to global-ce.