... Customers and users in the formation of a very high reputation. JGB-20 typeEngine driven hook-head wrenchManualone, ... pieces of elastic fastenings at the same time, featuring high working efficiency, accurate installation, focus control, easy operation. ... replacing operation.B. main technical parameter1,petrol engine type HondaGX2002,engine rated power: 4.8kw3,engine rev.: 3600r/min 4,rated thrust ...