STAS 569-1979 MALLEABLE CAST IRON Grades and general technical requirements for quality《可锻铸铁 等级和一般质量技术要求》.pdf

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JIS G9072-1976 可锻铸铁热处理作业标准.pdf

CJ T 137-2001 给水衬塑可锻铸铁管件.pdf

CJ T 137-2008 给水衬塑可锻铸铁管件.pdf

DL T 768.1-2002 电力金具制造质量 可锻铸铁件.pdf

JB 2122-1977 铁素体可锻铸铁金相标准.pdf

JB T 7529-1994 可锻铸铁热处理.pdf

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GB T 3287-2011 可锻铸铁管路连接件.pdf

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