... 2" 2)Material:ABS, PE,NR 53)Usage:Cooling tower, heat exchange INTRODUCTIONDetailsNameOKD-20Silk mouth specificationsG3/4 (DN20)Float ... . At present has set up a file in the southwest, the east China area and cooling tower, environmental protection, anticorrosion, ... equipment etc widely used in, especially for high and low a water tank, water tower of water level automatic control, product ...