1. Anti-explosion.
2. Wholely winding.
3. Anti-aging.
4. Thick material, 18layers, 19layers, 20layers, 21layers, 22layers, etc.
5.lifespan 10 years
6. Chain: Hot galvanized.
7. Flange: Hot galvanized or stainless steel.
8. Shackle: Hot galvanized.
9. Valve: Copper.
10. Working pressure: 0.05Mpa, 0.5Bar.
11. Testing pressure: 0.15Mpa, 1.5Bar.
12.Warranty: 12 months.
13. Certificates: CCS, GL, etc.