标签“2051-2020.pdf”的相关文档,共1条
  • JIS B 2051-2020.pdf

    JIS B 2051-2020.pdf

    JISB2051:2020MalleableironandductileironvalvesICS23.060.01;77.140.80Referencenumber:JISB2051:2020(E)JAPANESEINDUSTRIALSTANDARDTran...

    2026-05-0111161.5 MB197
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