用途：
适用于使用石油基液压油，温度范围-40℃~+100℃（-40°F~+212°F）的软管。
特性：
软管由一层耐油、合成橡胶内层、4层钢丝缠绕层和一层耐油、耐天候合成橡胶
外胶层组成。软管执行EN856-4SP标准、GB/T10544-2013标准。
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Application :   High pressure circuits ,Mining and opencast mining , mining approval
Standard:        EN856-4SP
Inner layer:     Oil resistant synthetic rubber 
Insert:             Four maximum strength steel wire spiral layers
Outer layer:    Synthetic rubber with high temperature, ozone and weather resistance 
Colour:           Black
Temp.min :     -  40 ℃
Temp.max:     + 100 ℃
Media:  Mineral oil ,Polyglycol based oil ,Water (0°C to + 70°C) ,Water-oil emulsions