304S.S Ball Type Ventilation Exhaust Fans Without Power for Warehouse Greenhouse Roof

Purchasing Notes 1. If you knows little but only the volume or area of your warehouse, plant or workshop, like their length, width, height, please make sure that contact us in time. By doing so, our engineers can design the specifications and quantity of the turbine fan in your need. 2.If there is no specification parameter that required in the parameter table, please tell us your requirements and we will give you a satisfactory designing scheme. 3.If you have confirmed our products, please place an order and then make payment. After that, we will arrange delivery as soon as possible. Without change in the order before our delivery, we will give you an exquisitely prepared present. In case of refund, we have to charge 10% of the total amount as penalty. 4.If there is any difficulty in transportation, please contact us immediately and we will give you a satisfactory plan to save freight as much as possible.