... grilles supply linear diffuser,linear diffuser grille,diffuser air supply hvac linear diffuser linear ceiling diffuser linear air conditioning ... diffuser Shaping Mode: plastic injection Mould Steel: S45C, P20, 718, 718H, 2738, 738H, NAK80, SKD61, E420, etc. (For ... . Color: orange,white5. Weight: 280g6. Features: 1)linear, firm, cheap, durable, good ventilate and quality2)easy ...