1.Carrying standard : National GB151-1998 shell type heat interchanger 2.Application scope: It applies to chlorine alkali, petroleum, metallurgy,chemical industry, medicine, ship, salt-making, sea water purification,etc. 3.Material: Titanium and titanium alloy, nickel and nickel alloy, aluminum, copper and stainless steel,etc. 4.Structure type: Fixed pipe type , bobber pipe type , U pipe type 5.Characteristic: Inoxidizability is strong, heat transferring rate is high, application scope is wide, equipment weight is light, the structure is compact.