对夹旋启式止回阀 LJH77X-10C,LJH77H-25C,JH77Y-25I,LJH77W-10C,LJH77W-25P,LJH77X-40C,LJH77W-16P,
0P-DN250,LJH77W-40P-DN250,
LJH77X-10C-DN300,LJH77H-25C-DN300,JH77Y-25I-DN300,LJH77W-10C-DN300,LJH77W-25P-DN300,
LJH77X-40C-DN300,LJH77W-16P-DN300,LJH77X-25C-DN300,LJH77X-16C-DN300,LJH77H-10C-DN300,
LJH77H-16C-DN300,LJH77H-40C-DN300,JH77Y-40I-DN300,JH77Y-64I-DN300,LJH77W-25C-DN300,
LJH77W-16C-DN300,LJH77W-40C-DN300,LJH77W-10P-DN300,LJH77W-40P-DN300,
LJH77X-10C-DN350,LJH77H-25C-DN350,JH77Y-25I-DN350,LJH77W-10C-DN350,LJH77W-25P-DN350,
LJH77X-40C-DN350,LJH77W-16P-DN350,LJH77X-25C-DN350,LJH77X-

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