Spheroidal graphite cast iron is obtained through spheroidization and inoculation treatment, which effectively improves the mechanical properties of cast iron, especially improves the plasticity and toughness, so as to obtain higher strength than carbon steel.

K9 is DN100-300 50kg

DN350-600 40kg

DN700-1000 32kg

DN1100-2000 25 kg

DN2200-2600 18kg