电动衬氟O型球阀 ZSS-10C-DN15,ZSS-16C-DN25,ZSS-25C-DN65,HRF-10C-DN50,HRF-16C-DN40,HRF-25C-DN32,
9.5




65


21/2


222


180


145


120


3


20


4-18


300

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