Application: suitable for the use of oil-based hydraulic oil, temperature range ~ 40 ℃ ~ + 121 ℃ Constructions: the hose consists of one layer of oil resistant, heat-resistant synthetic rubber inner rubber layer, one or two layers of steel wire braid layer and one layer of oil resistant, weather resistant rubber outer rubber layer.According to the standards of SAE J517 and GB/T 10544-2003