... Air Blower Size: 400mm, 500mm, 600mm Available Large Air Delivery, Heavy Duty and Security Design Product Name:External Type Strong Air ... Ph.380V, 50Hz1500145018375600Three Ph.380V, 50Hz2200145025079-Large Air Delivery-Heavy Duty-Durable Motor-Heavy Duty and ... DesignGood choice for air ventilation in different environments such as worshop, warehuse, laboratory ect.. External Type Strong Air Blower