Stainles steel Linear diffuser FS LD US 3-7 / Piece 200 Piece/Pieces (Min.Order) Ceiling square one 1 way Bevelled Edge air Diffusers for HVAC ventilation made by China manufacturer US 1-3 / Piece 20 ...

Plenum box F-JY connects to the main whirl tube by hoses, and in the connnection, there is a disc valves to control the air volume into the plenum box. Inside the plenum box, it is affixed with a ...