... /2.2, 90/2.3A, 100/3.1, 110/2.8, 120/3.0 and 130/3.2.Equipped drilling rod ... special silencer bringing comfortable working condition, etc. MQT-70/1.8,MQT-85/2.2,MQT-90/2.3A,MQT-100 ... /3.1,MQT-110/2.8,MQT-120/3.0 and MQT-130/3.2. And ... .2MQT-90/2.3ASUITABLE PRESSURE RANGE (MPa)0.4 -- 0.630.4 -- 0.630.4 -- 0.63RATED PRESSURE (MPa)0.50.50.5RATED ...