After 50 years of development, China Aerospace Science and Industry Corporation Limited, has more than 500 enterprises and institutions, with more than 140,000 employees. The machining workshop in Nanjing covers an area about 9,000m², made of steel structure with two floors.

1. The metal products produce massive iron filings, which float in the air and are difficult to discharge, and are easy to cause diseases if inhaled.
2. The equipment will generate much heat, aggravating high temperature and heat of the environment, resulting in worker's irritability and distraction. Improper use of the equipment will cause injuries, which lower work efficiency.
3. The equipment is made of metal, and the moisture will cause corrosion damage to the equipment for a long time, resulting in economic losses.

1. The workshop is 9,000m². 3 sets Eagle fans are installed in the operation workshop on the 1st part and another 3 units Eagle fans are installed in the product  warehouse on the 2nd part. A total of six HVLS industrial ceiling fans are installed.
2. The air current of the fan flows from ceiling to ground and then moves in the horizontal direction on the floor, strengthening the indoor air flow, quickly exchanging fresh air with the outdoor, and discharging the dirty air.
3. The HVLS fan drives air through the large fan blade in a wide area. The breeze can accelerate evaporation of sweat, cool the body by 37.4-46.4°F, make employees cool and comfortable, indirectly improve work efficiency and reduce accidents.
4. The HVLS fan installed in the metal accessories storage area can keep the environment dry, especially in rainy and humid seasons, which can effectively prevent the accessories from being damaged by corrosion.