DIN 20 023, EN 856 Type 4SP, Heavy four wire spiral. Recommended for hydraulic system service with petroleum and water-base fluids, or general industrial service. // Description: Tube:oil resistant synthetic rubber// Reinforcement:four high tensile steel wire spiral layers// Cover:abrasion and weather resistant synthetic rubber// Temperature range:-40ºC to +100ºC// Hose size:3/8"-2"// Working pressure:16.5mpa(2")-45mpa(3/8")// We are professional manufacturer of hydraulic hose and fittings.Main item include SAE 100 R1,R2,R3,R4,R5,R6,R7,R8,R12,R13,R14,4SP,4SH,flexible ss hose and a large variety of hydraulic fittings,if you are interested in our products,please feel free to contact with us.