SANY Rotary Drilling Rig vs Yishan(Tianjin)Heavy Rotary Drilling Rig which is better

SANY Rotary Drilling Rig and Yishan(Tianjin)Heavy Rotary Drilling Rig Which one is better? What is the difference between SANY Rotary Drilling Rig and Yishan(Tianjin)Heavy Rotary Drilling Rig which is of good quality, the editor learned through comparative analysis SANY SR235-S Rotary drilling rig,SANY SR205-S Rotary drilling rig,SANY SR235-M Rotary drilling rig,SANY SR285R-M Rotary drilling rig,SANY SR235-C10 Rotary drilling rig,XRS1050 Rotary drilling rig,XRS680 Rotary drilling rig,XR400D Rotary drilling rig,XR320D Rotary drilling rig,XR260D Rotary drilling rig performance characteristics and detailed parameter configuration for the majority of netizens to refer to, understand SANY Rotary Drilling Rig and Yishan(Tianjin)Heavy Rotary Drilling Rig Which is better, please pay attention to global-ce.