... , 3003Out diameter: 4-20mmWall thickness: 0.5-2.5mmCommon used specification: 6*0.35, 7*0.4, 8*0.5, 8*1 ... .65, 20*1.12, 20*1.3mm etc.Usage:Widely used in condenser, water tanks for automobile, intercooler, evaporator, warm wind ... movement, air conditioner pipeline, car radiator, cooler, freezer, heat exchanger, refrigerator and so on.Quality ...