常温下输送石英砂、铁砂、水泥、泥浆等磨蚀性材料。内胶层耐磨、耐冲击，外胶层耐老化。
Conveyance of wear and corrosion matterials such as quaetz sand, steel sand, cement, mud etc. under normal temperature.
The tube is wear resistant, anti-impact and weather-proof cover.