ขาย 300MM Stainless Steel Unpowered Hood Wind Ball Fan Roof Ventilator Industrial Plant Flue Exhaust Vent QmCj ราคาที่ดีที่สุด

How to choose? You need to measure the size of the caliber at your installation location, and then choose the same caliber size of the product, and that's it! Specification: Material: Stainless steel Color: Silver Package content: 1X roof ventilator The size of the bottom plate is large, so it needs to be sent in two orders! When placing an order, please purchase additional boards! We will send you two packages! Features: 1.Dependable Rotary that works automatically, continuously, and silently without operating or maintenance costs. 2.Premium-grade stainless steel dual ball bearings with an integrated molded shield to protect raceway bearings. 3.permanently lubricated ball bearings. Ideal for residential or commercial use light.