3.4.3 斜四通管、正四通管

柔性接口斜四通管規(guī)格見表3-50、正四通管見表3-51,非柔性45°四通管規(guī)格見表3-52、90°四通管見表3-53。表3-50柔性接口斜四通管規(guī)格(摘自GB/T12772—91)表3-51柔性接口正四通管規(guī)格(摘自GB/T12772—91)表3-52非柔性接口45°四通管規(guī)格(摘自YB ......（本文共 572 字 , 4 張圖）     [閱讀本文] >>