通风蝶阀 DXH373X-16C-DN50,DXH373X-16C-DN65,DXH373X-16C-DN80,DXH373X-16C-DN100,DXH373X-16C-DN125,|产品总汇|无锡市昌林自动化科技有限公司手机版

通风蝶阀 DXH373X-16C-DN50,DXH373X-16C-DN65,DXH373X-16C-DN80,DXH373X-16C-DN100,DXH373X-16C-DN125,

D1

D2

n-d

D

D1

D2

n-d

50

2

108

70