NEN 1093-1979 Safety requirements for ductile cast iron gas pipelines operating at pressures exceeding 7 bar《工作压力在7巴以上的可锻铸铁输气管道的安全要求》.pdf

相关资源

CBM 1022-1981 船用法兰 许用温度及工作压力（草案）.pdf

HB 4-123-1983 工作压力为15kgcm'2的装有同外锥管嘴的4;5组棉线编织软管.pdf

HB 4-124-1983 工作压力为15kgcm'2的装有内锥管嘴的4;5组棉线编织软管.pdf

HB 4-130-1983 工作压力为30~120kgcm,2的装有内;外锥管嘴的4组棉线纺织软管.pdf

HB 4-131-1983 工作压力为30~120kgcm'2装有内锥管嘴的4组棉线编织软管.pdf

HB 4-132-1983 工作压力为30~120kgcm,2的装有外锥管嘴的4组棉线编织软管.pdf

HB 4-125-1983 工作压力为15kgcm'2的装有外锥管嘴的4;5组棉线编织软管.pdf

HB 4-127-1983 工作压力为15kgcm'2的装有内外锥管嘴的2组棉线编织软管.pdf

HB 4-128-1983 工作压力的15kgcm'2的装有内锥管嘴的2组棉线绵织软管.pdf

HB 4-129-1983 工作压力为15kgcm,2的装有外锥管嘴的2组棉线纺织软管.pdf

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