... auto industry, heat exchanger 2.ISO9001/14001/18001/CCS 3.ASTM, BS, DIN, EN, JIS Bundy tube Double-Wall ... bundy tube, PVF coated bundy tube, etc. Single-Wall TubesMain Characteristics: Excellent mechanical property, extremely good inside ... cut to length and mainly for refrigeration industry and auto industry. It is an ideal material for all ... for air condition, refrigerator, heat exchanger, auto industry