TIME:2009-11-14 14:58:00 pv:89
TIME:2009-11-14 9:47:00 pv:1425
TIME:2009-11-14 9:47:00 pv:136
TIME:2009-11-14 9:47:00 pv:406
TIME:2009-11-14 9:47:00 pv:147
TIME:2009-11-14 14:58:00 pv:93
盲板是中间不带孔的法兰,供封住管道堵头用。密封面的形式种类较多,有平面、凸面、凹凸面、榫槽面、环连接面。
TIME:2009-11-14 14:56:00 pv:131