ASME B16.48-2025 管线盲板法兰.pdf

LineBlanksANAMERICANNATIONALSTANDARDASMEB16.48-2025(RevisionofASMEB16.48-2020)LineBlanksANAMERICANNATIONALSTANDARDn翰扩eee:：n齿，...