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-16C-DN350,LJH77H-10C-DN350,
LJH77H-16C-DN350,LJH77H-40C-DN350,JH77Y-40I-DN350,
JH77Y-64I-DN350,LJH77W-25C-DN350,
LJH77W-16C-DN350,LJH77W-40C-DN350,LJH77W-10P-DN350,LJH77W-40P-DN350,
HH46X-10C,HH46X-16C,HDH48X-16C,HDH48X-25C,HH49X-10C,
HH49X-16C,HH49X-25C,阻缓闭消声止回阀
HH46X-10C-DN40,HH46X-16C-DN40,HH46X-25C-DN40,HDH48X-10C-DN40,
HDH48X-16C-DN40,HDH48X-25C-DN40,HH49X-10C-DN40,
HH49X-16C-DN40,HH49X-25C-DN40,
HH46X-10C-DN50,HH46X-16C-DN50,HH46X-25C-DN50,HDH48X-10C-DN50,
HDH48X-16C-DN50,HDH48X-25C-DN50,HH49X-10C-DN50,
HH49X-16C-DN50,HH49X-25C-DN50,
HH46X-10C-DN65,HH46X-16C-DN65,HH46X-25C-DN65,HDH48X-10C-DN65,
HDH48X-16C-DN65,HDH48X-25C-DN65,HH49X-10C-DN65,
HH49X-16C-DN65,HH49X-25C-DN65,
HH46X-10C-DN80,HH46X-16C-DN80,HH46X-25C-DN80,HDH48X-10C-DN80,
HDH48X-16C-DN80,HDH48X-25C-DN80,HH49X-10C-DN80,
HH49X-16C-DN80,HH49X-25C-DN80,
HH46X-10C-DN100,HH46X-16C-DN100,HH46X-25C-DN100,
HDH48X-10C-DN100,HDH48X-16C-DN100,HDH48X-25C-DN100,
HH49X-10C-DN100,HH49X-16C-DN100,HH49X-25C-DN100,
HH46X-10C-DN125,HH46X-16C-DN125,HH46X-25C-DN125,
HDH48X-10C-DN125,HDH48X-16C-DN125,HDH48X-25C-DN125,
HH49X-10C-DN125,HH49X-16C-DN125,HH49X-25C-DN125,
HH46X-10C-DN150,HH46X-16C-DN150,HH46X-25C-DN150,