... powder painting. 3. Inner cleaness: up to R134a & CFC requirement. Main products: roll bond evaporator, wire on tube evaporator ... fin evaporator, capillary tube, Cu-AI jointer, etc.roll bond evaporator Specifications Raw material Al-plate: finished products ... evaporator Key process Prepare the material, Cleaning, roughing surface, Printing, Riveting, Rolling, Annealing, Blow up, Punching, Folding and ...