... Plate Heat Exchanger, Dual Wall Heat Exchanger, CE, UL, TUV,ISO9001:2000 Technical parameterProduct nameDouble Wall Brazed Plate Heat Exchanger, Double Wall Plate Heat Exchanger, Dual Wall Heat Exchanger,CE ... Systems RVSB-1124 5 3.0 Acceptable Numerical Controlled Wire Electric-Discharge Machine DK7740H 2 1.0 Acceptable Tube Diminish Machine ...