We are offering refrigeration parts flare nut, this series products are made of high quality brass material, with excellent crafts. It has advantages on convenient connecting, less leakage and so on. It is widely used for refrigeration systems 1. High quality brass material hpb59-1or c3771bd2. Complete sizes: from 14" to 78" for optional. 3. Polishing surface treatment. 4. Applications: used for air conditioning system 5. Iso9001, iso14001, cjt111standards approved 6. Fast delivery , good standard export packing . 7. Warm service, competitive prices. 8. 16 years' experience in manufacturing .