1,Type:flat and round valve
2,Size:80mm--250mm
3,Material:stainless steel
4,Color:polish

Material: stainless steel

suitable for offices ,houses,easy installtion in the wall or on the ceiling.

the valve body is equipped with a celluar gasket  to form an air -tight seal .

air folw is adjusted by rotating the control disc.

size:100mm,125mm