... 1.8, 85/2.2, 90/2.3A, 100/3.1, 110/2.8, 120/3.0 and 130/3.2.Equipped drilling rod with ... two connection types, B19 and B22. ... air & water control valve; and special silencer bringing comfortable working condition, etc. MQT-70/1.8,MQT-85/2.2,MQT ... 1,MQT-110/2.8,MQT-120/3.0 and MQT-130/3.2. And each model can be equipped with drilling rod with ...