... 15~0.25mmSide plateAl plateδ0.8~1.5Applicationrefrigerator and ice boxKey processTube bending ,Punching the fins,Tube expanding,Degreasing, ... 15~0.25mmSide plateAl plateδ0.8~1.5Applicationrefrigerator and ice boxKey processTube bending ,Punching the fins,Tube expanding,Degreasing, ... 25≤30Residual impurity≤100mg/m 2Biggest single impurity≤2mg fin evaporator for refrigerator, evaporator, refrigeration