For different properties, power steering hoses are classified into two types: high pressure and low pressure or return hose. Generally speaking, high pressure hoses are fabricated by CSM. It runs well at successive elevated temperature of 270℉, occasionally up to 300℉. Due to transferring pressurized fluid, the hose should withstand internal pressure and at the same time pulsation pressure. To fulfill the task, its working pressure should reach 1500 psi. As its harsh working conditions, the power steering pressure hose are manufactured by state-of-art materials - CSM.