For dredging vessel support absorbing sediment,flexibly, safety, wear-resistant, scratch resistance. Features:Suction hose for dredging vessel support absorbing sediment, thickness ... 50 degrees. Easy to install, use flexibly, safety, wear-resistant, scratch resistance.Inside DiameterWorking PressureMpaFlange sizeLengthmminchBore numberpore diametermmHole center distancemm400±2.08032165400 ...