1. The flange is made of 304 material and forged according to JB81-94 standard. It has no difference and can improve the service life for more than 5 years.

2. The rubber ball is made of EPDM rubber with a rubber content of 40% or more. It is resistant to tensile, compressive, aging, high temperature and low temperature. It is more suitable for 2 years than conventional rubber.

3. The number of rubber linings in the rubber ball exceeds the CJ/T208-2005 standard.

4. The thickness of the end faces of the rubber ball is increased by 10mm, and the wire loop is added to prevent the ball from pulling off.

5. Rubber ball plus steel wire, resistance to distortion, seismic shock coefficient increased by 10%.

6. Each product will be inspected for appearance, hardness, air tightness, pressure and flange pull-off before leaving the factory. Unqualified products are strictly not allowed to leave the factory

7. The flange is sprayed. The thickness of the spray is more than 250um, which can reduce the rust generated in the humid environment by more than 70% and increase the oxidation resistance by more than 20%.

8. The sphere and flange have Bundor logo. It is traceable.

9. Pango  brand product quality is covered by China Pacific Insurance with two million dollars. Two years warranty, pay two back if one bad within two years. Any quality problems of the product itself, we will pay without conditions.