Heat Exchanger,cooler,condenser,evaporator and heater Type: Fixed tube sheet,floating head,U-type tube,packing box Tube material: TA1,TA2,TA9,Zr0,Zr702,Ta1,Ta2,N4,N6 Housing material: Q253-A 16 MnR 20g 1Cr18NI9 Tube sheet material: Ti/Steel Clad,Zr/Steel Clad,Ta/Steel Clad and Nickel based alloys Spec.: GB150-1998