Performance description
Material: galvanized sheet.
Specification: match the size of air duct.
Structure: all valve flanges are made as common plate flanges, and the flange width is 35mm,
Thickness of rectangular valve body: l = 210mm.
Features: it can be directly installed on the air duct and connected with the air duct to control the wind speed and adjust the indoor air volume
It is convenient and dexterous to adjust 5.
