... Drilling Rig Main Feature:1, ZGYX-410 A/B/C/D can be divided into single cylinder of diesel engine S11252, Two ... 4D80, and electrinic motor of 15 KW model 3, it can be divided into Old Style Model, Dry Dust Collector Model ... feature: The simple removable cover added to thedrill body, it can keep off the dusts and rockfalls, enhancesthe security and the ...