D343H/D373H硬密封(feng)渦輪(lun)不銹(xiu)鋼(gang)蝶(die)閥
D73H彈(dan)性硬密封(feng)手動(dong)蝶閥
D343X手(shou)動(dong)碳(tan)鋼(gang)法(fa)蘭蝶(die)閥
D373蝸(wo)輪(lun)對(dui)夾(jia)式(shi)鑄鋼(gang)蝶(die)閥
D343H法(fa)蘭不銹(xiu)鋼(gang)渦輪(lun)蝶(die)閥
D673氣(qi)動(dong)碳(tan)鋼(gang)三(san)偏心(xin)蝶(die)閥
D643氣(qi)動(dong)鑄(zhu)鋼(gang)雙(shuang)偏心(xin)蝶(die)閥
MQD343HP煤(mei)氣(qi)硬密封(feng)蝶閥
D73H/F手(shou)柄硬密封(feng)蝶閥
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