Copper Heat Exchanger 1.Tank with 1.2mm 2.Welded Steel Structure Construction Copper Heat ExchangerProduct Specifications 1, Capacity: 100 to 750L, ... arcInsulation: 50 to 60mm import polyurethane integral foaming, superior heat preservation, 6, Superior water quality and drinkable 7, ... With non, one, two or three coils We have accumulated abundant experience and established stable and ...