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48634 ventilated wall products are offered for sale by suppliers on Alibaba.com, of which axial flow fans accounts for 39%, hvac systems parts accounts for 5%, and registers & grilles accounts for 4%. A wide variety of ventilated wall options are available to you, such as odm, obm and oem.You can also choose from wall fan, wall mounted ventilated wall,As well as from ball bearing, ball ventilated wall,