In addition, material considerations include the type of fluid being conveyed and its concentration as well as substances that may attack the hose cover. Hose selection must ensure compatibility if it is to convey special oils or chemicals. The same holds for hose exposed to harsh environments. Substances such as UV light, ozone, saltwater, chemicals, and pollutants can cause degradation and premature failure. And for Industrial Hose, there are many different types for different usages such as Pressure Washer Hose, Steel Wire Braid Hydraulic Hose, Steel Wire Spiral Hydraulic Hose and so on. http://www.ugw-hose.com/hydraulic-hose/