... 3.ISO9001 4.Many attributes optional High pressure flexible stainless steel hosea)It is made of internal rubber ,middle rubber ,2,4 or 6 layers ... can stand high perssure,big pulse.c)the hose could convey hydraulic oil, fuel oil, lubrication oil, emulsifying oil, air and water ... , although the temperature is -40+100. d)this products are widely used in various hydraulic equipment. Hose Size ...