PBQ40H-10/16/25/40C气动偏心半球阀PBQ640H DN500 600 700
面议PBQ40H-10/16/25/40C气动偏心半球阀PBQ640H DN500 600 700
面议PBQ40H-10/16/25/40C气动法兰偏心半球阀PBQ640H DN350 400 450
面议PBQ40F-10/16/25/40C手动法兰偏心半球阀PBQ40F DN100 125 150
面议PBQ340H-10/16/25/40P蜗轮偏心半球阀PBQ340H DN50 65 80
面议DYQ340H-10/16/25/40P硬密封偏心半球阀DYQ340H DN200 250 300
面议DYQ40H-10/16/25/40P硬密封偏心半球阀DYQ40H DN350 400 450
面议DYQ340F-10/16/25/40C软密封偏心半球阀DYQ340F DN100 125 150
面议DYQ40F-10/16/25/40C软密封偏心半球阀DYQ40F DN50 65 80
面议