Supporting dredging ship,conveying sediment, gravel and other media.flexible, safety, wear-resistant, scratch resistance. Features:Wall thickness of 18—70mm. Appropriate working temperature for minus 20 degrees to 50 degrees. Easy to install, use flexibly, safety, wear-resistant, scratch resistance.Inside DiameterWorking Pressure MpaFlange sizeLengthmminchBore numberPore diameter mmHole center ...