... efficiently crash on concrete, reinforced concrete, asphaltum, rock, no matter under what condition, terrible open country or downtown with high request on environment and ... , easy to movePowerful concussion, slight reboundnessLow noicse, reliable, endurableMultiple hammer for choiceSpecification: TypeBR40BR40SBR45BR45SBR72BR72SWeight(kg)181920212829Flow range(lpm)15-2415-2426-3426 ...