high pressure flexible spiral hose 1.1 to 4 steel wire spiral layers 2.ID:1/4-4'' 3.ISO9001 4.Many attributes are optional High pressure wire flexible spiral hosea)It is made of internal rubber ,middle rubber ,2,4 or 6 layers of wire-wood,and external rubber .b) it is used in aerospace, petroleum chemical industry, mining electronics, mechanical shipbuilding, medical and health, light and ...