... .Certificate:ISO9001:2000 2.low and high pressure 3.High quality 4.PU,PA,steel wire ,fiber low and high pressure industrial hose ... as hydraulic pressure , pneumatic ,mortar conveying ,light industry ,water consrvancy and so on .1,Pure Pu hose2,Pure PA hose3,Steel ... :4mm-51mmWorking pressue:6--1200barTemperature:-40°c--120°c low and high pressure industrial hose for air water oil