PRODUCTS OF KINGOOD KINGOOD'S PATENT PRODUCT Low noise, saving space, free from belts, and easy maintenance. MINI SIZE OF RE-CIRCULATED AND COOLING VERTICAL ROOTS BLOWER Low noise, light weight, small air flow, and easy maintenance. TRADITIONAL BELT TYPE ROOTS BLOWER Durable, precise processing, and various sizes. EXCLUSIVE SUBMERSIBLE ROOTS BLOWER Low noise, saving space, free from belts, and no need to maintain.