Appearance: wear-resistant sandblasting hose, a kind of material conveying pipe. Common black, sub-yellow or transparent; outer plastic packaging tape wrapped mostly, common between the outer and outer plastic with steel wire to apply negative pressure conditions.

Usage: It is mainly used for fluid transportation of solid particles, such as particles, grit, cement, flowing sand, concrete, gypsum, etc. It is applicable to all types of tunnel works, well alleys, caverns and other engineering operations.