the steel flange dredging hoses are used with dredgers for silt/gravles conveyance performance dredging hosethe steel flange dredging hoses are used with dredgers for silt/gravles conveyance.thickness of pipe wall is from 18mm-70mm,the suitable temperature is from -20-50,it is convenient to install ,flexible to use ,safe ,abrasion-resistant and bending -resistant. specification: IDWorking ...