... 2.ISO9001/14001/18001/CCS 3.Standard:ASTM,DIN,B Refrigeration bundy tube1.Widely used:non-freon refrigerator, condenser, etc2.ISO9001 ... , transmission oil cooler lines, air conditioning tube, power steering, condenser, compressor, evaporator etc. Test ItemTechnical StandardTest ResultOuter DiaΦ4.76±0 ... LeakagePlating Thickness>15μm22μmSalt Spray Test>2500 hours3000 hours Refrigeration bundy tube