We can produce ,valve body, valve case, by ductile iron casting, grey casting, some of the parts serve pipe system.
the grade can be HT200-HT400,QT400-QT700 ,malleable cast iron, nodular iron, spheroidal graphite cast iron.
These parts will be processed by CNC machining after rough casting
some of the casting need to be heat treatment to get a good mechanical strength.
there are many foundry in Ningbo, Most of them equipped the inspect machine, such as spectrometer,
tensile machine, impact machine, etc.