DIAMETER	100mm*350mm*3mm
THICKNESS	3mm
SURFACE TREATMENT	Polishing/Sand blasting
COLOUR	Aluminum natural color
MATERIAL	Aluminum alloy 102
TECHNOLOGY	Cast Aluminum
APPLICATION	Exhaust fan

Number of Blades: The number of fan blades is generally only limited by the size (diameter) of the propeller. Props will generally have as few as 2 blades, up to 16 blades. Some even have an odd number of blades such as 3, 5 or 7. The most common are 4 and 6 blade props.Q: May I get sample? A: yes, we welcome sample order to test and check quality. Mixed samples are acceptable, our samples need charge not free, however, the sample fee will be refunded when customer place bulk orders for the item.1.Packaging Detail: a.clear bags inner packing, cartons outer packing, then pallet. b.as per customer's demand for hardware stamping parts. 2.Payment: T/T,30% deposits advance; 70% balance before delivery. 3.Shipping : 1.FedEx/DHL/UPS/TNT for samples, Door-to-Door; 2.By Air or by Sea for batch goods, for FCL;Airport/ Port receiving; 3.Customers specifying freight forwarders or negotiable shipping methods! Delivery Time: 3-7 days for samples; 5-25 days for batch goods.1General ventilation of rooms or factories. 2Providing suction or pressure for industrial process air flotation tables. 3Drying ink on cans and bottles, silk screen and printing processes. 4Food processing. 5Circulating air in ovens and dryers.