* Shandong double-double Grille Grille lowest wholesale price of choice is tripod Industrial double Grille belong double adjustable louvered air outlet, which are widely used in air conditioning systems for the delivery outlet, usually installed in the pipe or the side wall the make side air outlet, according to customer needs, can be formulated aluminum rear outlet air flow control valve (Miter Gates), double Grille having two mutually perpendicular slices adjust the horizontal and vertical page page piece of angle, adjust the air flow diffusion surface to change the range, the outlet of the frame width of two wide borders and narrow frame, can be used for the special requirements of the ventilation system. Double Grille has two adjustable angle of moving blades, short blades for adjusting the angle of divergence for airflow can also be used to change the direction of airflow; long blade can be adjusted for airflow attached to the ceiling or declination certain angle (when the fan heater). vane outer leaves of double or single Grille Grille can be parallel to the long side to be parallel to the short side, you can be chosen according to customer requirements. Double Grille Product features are: double adjustable blade, available different distances and different air diffusion angle; as a delivery outlet; optional aluminum or iron production; can be used in conjunction with the valve.