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See Chinese contents: GB/T 9437-2009 GB/T 9437-2009: Heat resistant iron castings
This Standard specifies the technical requirements, test methods, inspection rules, marks and quality certificates, anti-rust, packaging and storage requirements for heat resistant iron castings. This Standard is applicable to heat resistant iron castings cast in sand molds or molds with similar thermal conductivity to sand molds and working at temperatures below 1100¡ãC.
