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Member Since
2006
Ningbo QS Machinery Inc.
sell sanding casting valve guide (OEM) , iron casting
Materials: Ductile Iron 80-55-06, QT500
Heat-treatment: Annealed, Annealing Secondary Operations: Machining in Turning, Milling, DrillingFinish: as cast
Keywords:China Casting Sand Casting china sand casting sand casting manufacturer casting parts valve seat ductile iron castng auto engine parts machined parts