JK-400 automatic hose assembly crimping machine ( 6-89mm ... .pressure:520 T 3.precision,0.02mm 4.w JK-400 automatic hose assembly crimping machine ( 6-89mm ... suitable for the outdoor work and production of without electric power. 3,Technical data1,Specifications 2,Hydro-cylinder ... rubber hose (manufactured according to JB1885-77 Standard) JK-400 automatic hose assembly crimping machine( 6-89mm 4SP)