1. Meet SGS and EJMA standard. 2. Material from Korea&Japan ,SUS304,SUS316,SUS316L,SUS321 3. High fluid performance 4. High temperature and high corrosion resistance, 5. Low the vibration and noise 6. All the products is tested with water&fatigue experimentation 7. Wide usage, such as aviation, oil, chemical, metal industry, ship, mine, power, building, medicine