Most of the hydraulic hose are press pressure, diameter, number of wire layers and connector type classification, the inlet and return lines are low-pressure tubing, generally 1 layer 16Mpa or less! out tubing for high pressure tubing, according to system pressure selection.
Hard tubes are metal materials, generally q235,45 and stainless steel (1Cr18Ni9Ti), and so on, there is a suction line from the tank to the pump, the general use of wire-wound resin hose!