... " 2)Material:ABS, PE,NR 53)Usage:Cooling tower, heat exchange INTRODUCTIONDetailsNameOKD-20Silk mouth specificationsG3/4 (DN20) ... in the southwest, the east China area and cooling tower, environmental protection, anticorrosion, chemical industry, solar equipment ... can be used for drinking water. D, corrosion resistance, wide adaptability. In the solar energy, cooling tower, environmental protection, ...