
SPECIFICATION FOR STEEL PIPE FLANGES (NOMINAL SIZES 1/2 IN TO 24 IN) FOR THE PETROLEUM INDUSTRY - METRIC DIMENSIONS
出版:British Standards Institution

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SPECIFICATION FOR STEEL PIPE FLANGES (NOMINAL SIZES 1/2 IN TO 24 IN) FOR THE PETROLEUM INDUSTRY - METRIC DIMENSIONS
出版:British Standards Institution
专家解读视频