1. The flange is made of ductile iron and has a spheroidization rate of grade 3.
2. The flange is sprayed with international renowned brand Akzo epoxy resin.
3. The spherical body is made of imported EPDM rubber and is vulcanized using our own factory process, ensuring controllable quality and long service life. It also has the British WRAS certification.
4. The thickness of both ends of the rubber ball is increased by 10mm and a steel wire ring is added inside, making the ball more resistant to detachment and twisting.
5. The number of cord fabric inside the ball exceeds the national standard, making it more resistant to pressure and tension.