... can be choosed. Product Features: 1. Large air flow, low noise; Designs various types of speed& pressure as requested.2. Impeller ... and Ball bearing can be choose.6.Favorable price, Attractive design, Great variety of products, Environment friendly technology.7.Applications: ... used in refrigerator, Micro-wave oven, warm-up machine, exhauster, heat-wave oven, air-cleaner,air curtain,air ...