The internal rubber, with the color of transparent yellow, is made of
polyurethanes and butyl rubber as well as special reinforcing agent. It has the
merits of high wear resistance, high tenacity, high pressure and so on. And its
wear index is 2-3 time that of the common sand blast hose.
Widely used in tunneling, well, cavern, revetment shotcrete of water and
electricity, mining, military defense and other fields.