1. Good sealing: It has a good fit with our plug products, and the sealing performance is good after the stopper and the nozzle are closed.

2. Anti-erosion: Advanced material formulation to effectively resist the physicochemical effects of the melt.

3. Antioxidant: Advanced anti-oxidation mechanism to ensure good protection of graphite in products.

4. High temperature resistance:1770 °C<refractoriness< 2000°C.

5. High strength: high-quality materials, high-pressure pressing, reasonable combination, high temperature strength, scientific product design, high anti-scour ability.

6. Long service life: ductile iron casting life is generally not less than 48 hours, gray iron casting is generally not less than 72 hours.