USE:Used to take out and suck solid materials or grain materials such as mineral sand,bits of coal and cereal(rice,whe at,corn)etc.

CHARACTERISTICS:The inside layer of the hose is good in flexibility and wear-resistance,while the outside layer is excellently anti-aging and wear-resisting.The hose has the double properties of bearing both the positive and negative pressure canbe used normallyunder the pressure of-80kpa(600mm mercury)at the vacuum The burst pressure of the hose is four times of more higher thanthe working pressure.